*{
        padding: 0;
        margin: 0;
        box-sizing: border-box;
        font-family:Microsoft JhengHei;
        font-size: 1rem;
    }
@media screen and (min-width: 840px){
    body{
        display: flex;
        justify-content: center;
        align-items: flex-start;
        background-color: #FAE4B0;
        min-width: 1200px;
    }

    #myMOUSE{ 
        cursor: default;
    }
    a{
        text-decoration: none;
        color: white;
    }

    .Wrapper{
        width: 100%;
        min-width: 860px;
        display: flex;
        flex-direction: column;
        align-items: center;
    }
    .aa{
        width: 350px;
        margin-top:18px;
    }

    header{
        width: 100%;
        min-width: 1200px;
        height: 85px !important;
        margin-bottom: 10px;
        background-color: #F4D06F;
        display: flex;
        justify-content: space-between;
        align-items: center;
        position: sticky;
        top: 0px;
        z-index: 20;  /*階層*/
        box-shadow: 0px 6px 6px rgb(0 0 0 / 10%);
        transition: 0.2s;
    }
    .head_logo{
        list-style: none;
    }
    .head_nav{
        height: 100px;
        margin-right: 50px;
    }

    .content{
        width: 70%;
        min-width: 850px;
    }

    /*導覽列*/

    .nav,.nav-item {
        display: inline-block;
        /*font-size:10px ;*/
        height: 35px;
        margin-top: 6px;
    }
    .nav-link {
        color:#392F5A;
        font-size: 18px;
        font-weight: bold;

        /*letter-spacing: 0.5px;*/
    
    }
    .nav-pills .nav-link.active, .nav-pills .show>.nav-link {
        color: #fff;
        font-weight: bold;
        background-color: #FF8811;
    }
    .nav-link:hover {
        color:#FF8811;
    }
    
    img{
        max-height: 450px  !important;
    }
    
    .purpose
    {
        font-family:'微軟正黑體' ;
        font-size: 25px;
        color: white;
    }
    .we{
        height: 28px;
        background-color:#219ebc;
        color: white;
        display: flex;
        flex-direction: row;
        justify-content: center;
        align-items: center;
    }
    .email {
        text-decoration: underline;
        padding-right: 15px;
        font-size: 14px;
    }
    .contact {
        font-size: 14px;
        margin-bottom: 0 !important;
    }
    .all_right{
        font-size: 12px;
        margin-bottom: 0 !important;
    }

    /*說書人理念*/
    
    .activity1{
        height: auto;
        margin-top: 10px;
        padding-bottom: 50px;
        background-color:#faf9f9;
        background-image: url("../img/so-white.png");
        display: flex;
        justify-content: center; 
        align-items: center;
        flex-direction: column;

    }
    .button10 {
        font-size: 25px;
        letter-spacing: 3px;
        font-weight: bold;
        width: 200px;
        height: 50px;
        color: white;
        background-color: #6B8496;
        border: 4px solid #6B8496;
        border-radius: 15px;
        box-shadow: 0 8px 16px 0 rgba(0,0,0,0.2), 0 6px 20px 0 rgba(0,0,0,0.19);
        margin-top: 2%;
    } 

    .buttonResult {
        font-size: 25px;
        letter-spacing: 3px;
        font-weight: bold;
        width: 325px;
        height: 50px;
        color: white;
        background-color: #6B8496;
        border: 4px solid #6B8496;
        border-radius: 15px;
        box-shadow: 0 8px 16px 0 rgba(0,0,0,0.2), 0 6px 20px 0 rgba(0,0,0,0.19);
        margin-top: 2%;
    } 

    .activity1-1{
        margin-top: 10px;
        height: auto;
        padding-bottom: 50px;
        background-color:#faf9f9;
        background-image: url("../img/so-white.png");
        display: flex;
        flex-direction: column;
        align-items: center;
    }
    
    .benifit {
        color: #000;
        font-size: 1rem;
        margin: 0 10%;
        padding-top: 25px;
        text-align: justify;
        text-justify: distribute;
    }
    
    /*參賽辦法*/

    h4{
        color: #6B8496;
        margin-top: 20px;
        margin-bottom: -10px;
        letter-spacing: 2px;
        font-weight: bolder;
    }
    hr{
        color: white;
        width: 350px;
        padding-top: 5px;
    }

    .accordion{
        padding-top:10px;
        
    }
    strong{ 
        font-size: 22px;
        letter-spacing: 1px;
        color: white; text-shadow: black 0.1em 0.1em 0.2em
    }
    .accordion-button:not(.collapsed) {
        color: white ;
        font-size: 18px;
        background-color: #6B8496;
        box-shadow: inset 0 -1px 0 rgb(0 0 0 / 13%);
    }
    .accordion-body {
        background-color:#faf9f9;
        background-image: url("../img/so-white.png");
        color: #434343;
       
    }
    .accordion-button:not(.collapsed)::after {
        background-image: url('');
    }
    .table_photo{
        width: 100%;
    }
    
     /*關於*/

    .about-0{
        width: 100%;
        display: flex;
        flex-direction: column;      
        margin-top: 10px;
        background-color:#faf9f9;
        background-image: url("../img/so-white.png");
    }
    .bigtitle{
        padding-top: 25px;
        margin: 0px auto 0px auto;
    }
    .button11 {
        font-size: 25px;
        font-weight: bold;
        letter-spacing: 5px;
        width: 340px;
        height: 60px;
        color: white;
        background-color: #6B8496;
        border: 4px solid #6B8496;
        border-radius: 15px;
        box-shadow: 0 8px 16px 0 rgba(0,0,0,0.2), 0 6px 20px 0 rgba(0,0,0,0.19);
    }
    
    .bigtitle2{
        padding-top: 10px;
    
    }
    .two_third {
        width: 80%;
        position: relative;
        font-size:22px; 
        color: #403d39; 
        margin: 0px auto; 
    }
    .two_four {
        width: 100%;
        position: relative;
        font-size:22px; 
        color: #403d39; 
        margin: 20px auto; 
    }
    .about_word{
        width: 100%;
        font-size: 1rem;
        padding: 15px 0;
        text-align: justify;
        line-height: 35px;
    }
    .two_third-0 {
        width: 65%;       
        position: relative;
        float: left;
        font-size:18px; 
        color: #403d39;
    }
    .about_word-0{
        padding: 30px 0px 0px 10%;    
        font-size: 25px;
        font-weight: bold;
        line-height: 55px;
        
    }
    .card{
        display: flex;
        margin-top: 15px;
        margin-left: 73%;
        margin-bottom: 38px;
        box-shadow: 0 8px 16px 0 rgba(0,0,0,0.2), 0 6px 20px 0 rgba(0,0,0,0.19);
        width: 200px !important;
        height: 220px !important; 
        align-items: center;
    }
    .purpose img{
        width: 180px;
        height: 180px;
    }

    .about{
        width: 100%;
        height: auto;
        display: flex;
        flex-direction: column;
        align-items: center;
        margin-top: 10px;
        background-color:#faf9f9;
        background-image: url("../img/so-white.png");
    }
    .other_activies{
        font-weight: bolder;
        font-size: 1.3rem;
        display: flex;
        flex-direction: row;
        align-items: center;
    }
    .other_activies p{
        font-weight: bolder;
        font-size: 1.3rem;
        margin: 0 0 !important;
    }
    
    
    /*辦理單位*/

    .group{
        margin-top: 10px;
        padding-top: 10px;
        width: 100%;        
        display: flex;
        flex-direction: column;
        align-items: center;
        background-color:#faf9f9;
        background-image: url("../img/so-white.png");

    }
    .button1 {
        font-size: 25px;
        font-weight: bold;
        letter-spacing: 5px;
        width: 250px;
        height: 60px;
        color: white;
        background-color: #6B8496;
        border: 4px solid #6B8496;
        border-radius: 15px;
        box-shadow: 0 8px 16px 0 rgb(0 0 0 / 20%), 0 6px 20px 0 rgb(0 0 0 / 19%);
    }
    .team3{
        width: 100%;
        height: 200px;
        display: flex;
        flex-direction: row;
        justify-content: space-around;
        align-items: center;
    }
    
    .unit{
        align-items: center;
        color: #D4B548;
        font-size: 18px;
        font-weight: bolder;
        display: flex;
        flex-direction: row;
    }
    .unit img {
        width: 100px;
        /* margin: 0 5%;
        padding-top: 10px; */
    }
    .bigger_img{
        width: 150px !important;
    }

    /* 我要投稿 */

    .mov{
        display: flex;
        flex-direction: row;
        justify-content: space-around;
    }
    .button_me {
        display: inline-block;
        padding: 15px 25px;
        font-size: 24px;
        cursor: pointer;
        text-align: center;   
        text-decoration: none;
        outline: none;
        color: #fff;
        background-color: #6D9B91;
        border: none;
        border-radius: 15px;
        box-shadow: 0 9px #999;
        letter-spacing: 1px;
        font-weight: bolder;
      }
    .button_me:hover {
        background-color: #95cabf
    }
    .button_me:active {
      background-color: #95cabf;
      box-shadow: 0 5px #666;
      transform: translateY(4px);
    }

    /* 人氣獎票選 */
    .popular{
        width: 100%;
        height: 550px;
        display: flex;
        flex-direction: column;
        justify-content: space-around;
        align-items: center;
        margin-top: 20px;
        background-color:#faf9f9;
        background-image: url("../img/so-white.png");
    }
    .illustrate{
        border:5px #5E4B39 solid;
        margin-top: 5px;
        width: 90%;
        border-radius: 15px;
    }
    .pop_fontsize{
        font-size: 20px;
    }
    .popular_div{
        display: flex;
        justify-content: center;
        align-items: center;
    }
    .yt{
        width: 60%;
    }
    .yttext{
        font-size: 18px;
        margin: 11px;
    }
    /* 尾 */


    /* 得獎作品 */
    .prize_grade_block{
        width: 100%;
        display: flex;
        flex-direction: column;
        align-items: center;
    }
    .prize_content{
        width: 100%;
        display: flex;
        flex-direction: row;
        flex-wrap: wrap;
        justify-content: center;
        margin-top: 20px;
    }
    .prize_title{
        width: 50%;
        /* background-color: chartreuse; */
        font-size: 24px;
        font-weight: bolder;
        display: flex;
        justify-content: center;
        align-items: center;
        margin-bottom: 10px;
        border-bottom: rgb(201, 199, 199) 2px solid;
    }

    .prize_title_4{
        width: 80%;
        font-size: 28px;
        color: #219ebc; 
        text-shadow: -1px -1px white, 1px 1px #333;
        font-weight: bolder;
        display: flex;
        justify-content: center;
        align-items: center;
        margin-bottom: 10px;
        border-bottom: rgb(201, 199, 199) 2px solid;
        margin: 0 auto;
    }
    .prize_yt_content{
        width: 33%;
        min-width: 320px;
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: space-around;
    }





    .prize_yt_video_2{
        width: 70%;
        display: flex;
        flex-direction: row;
        justify-content: space-around;
    }
    .prize_yt_content_2{
        width: 100%;
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: space-around;
        margin-bottom: 15px;
    }






    .prize_student_inf{
        width: 100%;
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;
    }
    .prize_student_inf_font{
        font-size: 14px !important;
        font-weight: bolder;
    }
    .prize_student_inf_font_s{
        font-size: 8px !important;
        font-weight: bolder;
    }

    .activity4_wrapper{
        width: 100%;
        display: flex;
        flex-direction: column;
    }
    .Selected_grade_block{
        width: 100%;
        margin-top: 20px;
    }
    .Selected_yt_content{
        width: 260px;
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: space-around;
        margin-bottom: 15px;
        /* height: 330px; */
        margin-top: 10px;
    }

    .Selected_yt_content_2{
        width: 100%;
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: space-around;
        margin-bottom: 15px;
        /* height: 330px; */
        margin-top: 10px;
    }

    .Selected_yt_video_2{
        width: 70%;
        display: flex;
        flex-direction: row;
        justify-content: space-around;
    }

    .Select_content{
        width: 100%;
        display: flex;
        flex-direction: row;
        justify-content: center;
        flex-wrap: wrap;
    }
    .Selected_student_inf{
        width: 100%;
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        /* margin-top: -30px; */
    }
    .Selected_student_inf_font{
        font-size: 12px !important;
        font-weight: bolder;
    }
    .Selected_student_inf_font_s{
        font-size: 10px !important;
        font-weight: bolder;
    }
    .activity4{
        margin-top: 20px;
        display: flex;
        align-items: center;
        justify-content: center;
        background-color:#faf9f9;
        background-image: url("../img/so-white.png");
    }

    /* ================= */

    .activity5{
        margin-top: 20px;
        display: flex;
        flex-direction: column;
        /*align-items: center;*/
        /*justify-content: center;*/
        background-color:#faf9f9;
        background-image: url("../img/so-white.png");
    }
    .activity5 img {
        width: 100px;
        height: 100px;
        display: flex;
    }
    .nav_title{
        height: 51px;
    }
    .c_text a{
        color: black;
        padding-left: 20px;
        /*padding-top: 50px;*/
    }
    .c_text a:hover{
        /* color: rgb(241, 26, 26); */
        color:#FF8811;
    }

/* ============================= */



    .popular_img{
        margin-top: -50px;
    }
    .popular_img_2{
        margin-top: -40px;
    }
    .popular_img_3{
        margin-top: 10px;
    }

    footer{
        width: 70%;
        min-width: 850px;
    }
}
@media screen and (max-width:840px){
    body{
        display: flex;
        justify-content: center;
        align-items: flex-start;
        background-color: #FAE4B0;
        min-width: 600px;
    }

    #myMOUSE{ 
        cursor: default;
    }
    a{
        text-decoration: none;
        color: white;
    }

    .Wrapper{
        width: 100%;
        min-width: 600px;
        display: flex;
        flex-direction: column;
        align-items: center;
    }
    .aa{
        width: 440px;
        margin-top: -10px;
    }

    header{
        width: 100%;
        min-width: 600px;
        height: 135px !important;
        margin-bottom: 10px;
        background-color: #F4D06F;
        display: flex;
        flex-direction: column;
        justify-content: flex-start;
        align-items: center;
        position: sticky;
        top: 0px;
        z-index: 20;  /*階層*/
        box-shadow: 0px 6px 6px rgb(0 0 0 / 10%);
        transition: 0.2s;
    }
    .head_logo{
        list-style: none;
    }
    .head_nav{
        height: 100px;
        margin-top: -20px;
    }

    .content{
        width: 95%;
        min-width: 600px;
    }

    /*導覽列*/

    .nav,.nav-item {
        display: inline-block;
        /*font-size:10px ;*/
        height: 35px;
    }
    .nav-link {
        color:#392F5A;
        font-size: 17px;
        font-weight: bold;
        padding: 0.3rem 0.6rem;
    }
    .nav-pills .nav-link.active, .nav-pills .show>.nav-link {
        color: #fff;
        font-weight: bold;
        background-color: #FF8811;
    }
    .nav-link:hover {
        color:#FF8811;
    }
    img{
        max-height: 450px  !important;
    }
    .purpose
    {
        font-family:'微軟正黑體' ;
        font-size: 25px;
        color: white;
    }
    .we{
        height: 38px;
        margin: 5px 0;
        background-color:#219ebc;
        color: white;
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;
    }
    .email {
        text-decoration: underline;
        font-size: 14px;
    }
    .contact {
        font-size: 14px;
        margin-bottom: 0 !important;
    }
    .all_right{
        font-size: 12px;
        margin-bottom: 0 !important;
    }

    /*說書人理念*/
    
    .activity1{
        height: auto;
        margin-top: 10px;
        padding-bottom: 50px;
        background-color:#faf9f9;
        background-image: url("../img/so-white.png");
        display: flex;
        justify-content: center; 
        align-items: center;
        flex-direction: column;

    }
    .button10 {
        font-size: 25px;
        letter-spacing: 3px;
        font-weight: bold;
        width: 200px;
        height: 50px;
        color: white;
        background-color: #6B8496;
        border: 4px solid #6B8496;
        border-radius: 15px;
        box-shadow: 0 8px 16px 0 rgba(0,0,0,0.2), 0 6px 20px 0 rgba(0,0,0,0.19);
        margin-top: 2%;
    } 
    .buttonResult {
        font-size: 25px;
        letter-spacing: 3px;
        font-weight: bold;
        width: 325px;
        height: 50px;
        color: white;
        background-color: #6B8496;
        border: 4px solid #6B8496;
        border-radius: 15px;
        box-shadow: 0 8px 16px 0 rgba(0,0,0,0.2), 0 6px 20px 0 rgba(0,0,0,0.19);
        margin-top: 2%;
    } 
    .activity1-1{
        margin-top: 10px;
        height: auto;
        padding-bottom: 50px;
        background-color:#faf9f9;
        background-image: url("../img/so-white.png");
        display: flex;
        flex-direction: column;
        align-items: center;
    }
    
    .benifit {
        color: #000;
        font-size: 1rem;
        margin: 0 10%;
        padding-top: 25px;
        text-align: justify;
        text-justify: distribute;
    }
    
    /*參賽辦法*/

    h4{
        color: #6B8496;
        margin-top: 20px;
        margin-bottom: -10px;
        margin-left: 10px;
        letter-spacing: 2px;
        font-weight: bolder;
    }
    hr{
        color: white;
        width: 350px;
        padding-top: 5px;
    }

    .accordion{
        padding-top:10px;
        
    }
    strong{ 
        font-size: 22px;
        letter-spacing: 1px;
        color: white; text-shadow: black 0.1em 0.1em 0.2em
    }
    .accordion-button:not(.collapsed) {
        color: white ;
        font-size: 18px;
        background-color: #6B8496;
        box-shadow: inset 0 -1px 0 rgb(0 0 0 / 13%);
    }
    .accordion-body {
        background-color:#faf9f9;
        background-image: url("../img/so-white.png");
        color: #434343;
       
    }
    .accordion-button:not(.collapsed)::after {
        background-image: url('');
    }
    .table_photo{
        width: 100%;
    }
     /*關於*/

    .about-0{
        width: 100%;
        display: flex;
        flex-direction: column;      
        margin-top: 10px;
        background-color:#faf9f9;
        background-image: url("../img/so-white.png");
    }
    .bigtitle{
        padding-top: 25px;
        margin: 0px auto 0px auto;
    }
    .button11 {
        font-size: 25px;
        font-weight: bold;
        letter-spacing: 5px;
        width: 340px;
        height: 60px;
        color: white;
        background-color: #6B8496;
        border: 4px solid #6B8496;
        border-radius: 15px;
        box-shadow: 0 8px 16px 0 rgba(0,0,0,0.2), 0 6px 20px 0 rgba(0,0,0,0.19);
    }
    
    .bigtitle2{
        padding-top: 10px;
    }
    .two_third {
        width: 80%;
        position: relative;
        font-size:22px; 
        color: #403d39; 
        margin: 0px auto; 
    }
    .two_four {
        width: 100%;
        position: relative;
        font-size:22px; 
        color: #403d39; 
        margin: 20px auto; 
    }
    .about_word{
        width: 100%;
        font-size: 1rem;
        padding: 15px 0;
        text-align: justify;
        line-height: 35px;
    }
    .two_third-0 {
        width: 65%;       
        position: relative;
        float: left;
        font-size:18px; 
        color: #403d39;
    }
    .about_word-0{
        padding: 30px 0px 0px 10%;    
        font-size: 25px;
        font-weight: bold;
        line-height: 55px;
    }
    .card{
        display: flex;
        margin-top: 15px;
        margin-left: 63%;
        margin-bottom: 38px;
        box-shadow: 0 8px 16px 0 rgba(0,0,0,0.2), 0 6px 20px 0 rgba(0,0,0,0.19);
        width: 200px !important;
        height: 220px !important; 
        align-items: center;
    }
    .purpose img{
        width: 180px;
        height: 180px;
    }

    .about{
        width: 100%;
        height: auto;
        display: flex;
        flex-direction: column;
        align-items: center;
        margin-top: 10px;
        background-color:#faf9f9;
        background-image: url("../img/so-white.png");
    }
    .other_activies{
        font-weight: bolder;
        font-size: 1.3rem;
        display: flex;
        flex-direction: column;
        justify-content: flex-start;
    }
    .other_activies p{
        font-weight: bolder;
        font-size: 1.3rem;
        margin: 0 0 !important;
    }
    
    /*辦理單位*/

    .group{
        margin-top: 10px;
        padding-top: 10px;
        width: 100%;        
        display: flex;
        flex-direction: column;
        align-items: center;
        background-color:#faf9f9;
        background-image: url("../img/so-white.png");

    }
    .button1 {
        font-size: 25px;
        font-weight: bold;
        letter-spacing: 5px;
        width: 250px;
        height: 60px;
        color: white;
        background-color: #6B8496;
        border: 4px solid #6B8496;
        border-radius: 15px;
        box-shadow: 0 8px 16px 0 rgb(0 0 0 / 20%), 0 6px 20px 0 rgb(0 0 0 / 19%);
    }
    .team3{
        width: 100%;
        height: 200px;
        display: flex;
        flex-direction: row;
        justify-content: space-around;
        align-items: center;
    }
    
    .unit{
        align-items: center;
        color: #D4B548;
        font-size: 18px;
        font-weight: bolder;
        display: flex;
        flex-direction: row;
    }
    .unit img {
        width: 100px;
        /* margin: 0 5%;
        padding-top: 10px; */
    }
    .bigger_img{
        width: 150px !important;
    }

    /* 我要投稿 */

    .mov{
        display: flex;
        flex-direction: row;
        justify-content: space-around;
    }
    .button_me {
        display: inline-block;
        padding: 15px 25px;
        font-size: 24px;
        cursor: pointer;
        text-align: center;   
        text-decoration: none;
        outline: none;
        color: #fff;
        background-color: #6D9B91;
        border: none;
        border-radius: 15px;
        box-shadow: 0 9px #999;
        letter-spacing: 1px;
        font-weight: bolder;
        /*margin : 0 auto;*/
      }
    .button_me:hover {
        background-color: #95cabf
    }
    .button_me:active {
      background-color: #95cabf;
      box-shadow: 0 5px #666;
      transform: translateY(4px);
    }

    /* 人氣獎票選 */
    .popular{
        width: 100%;
        height: 400px;
        display: flex;
        flex-direction: column;
        justify-content: space-around;
        align-items: center;
        margin-top: 20px;
        background-color:#faf9f9;
        background-image: url("../img/so-white.png");
    }
    .illustrate{
        border:5px #5E4B39 solid;
        margin-top: 5px;
        width: 90%;
        border-radius: 15px;
    }
    .popular_div{
        display: flex;
        justify-content: center;
        align-items: center;
    }
    .pop_fontsize{
        font-size: 16px ;
    }
    .yt{
        width: 60%;
    }
    .yttext{
        font-size: 12px;
        margin: 11px;
    }


    /* 得獎作品 */
    .prize_grade_block{
        width: 100%;
        display: flex;
        flex-direction: column;
        align-items: center;
    }
    .prize_content{
        width: 100%;
        display: flex;
        flex-direction: row;
        flex-wrap: wrap;
        justify-content: center;
        margin-top: 20px;
    }
    .prize_title{
        width: 50%;
        /* background-color: chartreuse; */
        font-size: 24px;
        font-weight: bolder;
        display: flex;
        justify-content: center;
        align-items: center;
        margin-bottom: 10px;
        border-bottom: rgb(201, 199, 199) 2px solid;
    }
    .prize_title_4{
        width: 80%;
        font-size: 28px;
        color: #219ebc; 
        text-shadow: -1px -1px white, 1px 1px #333;
        font-weight: bolder;
        display: flex;
        justify-content: center;
        align-items: center;
        margin-bottom: 10px;
        border-bottom: rgb(201, 199, 199) 2px solid;
        margin: 0 auto;
    }
    .prize_yt_content{
        width: 28%;
        min-width: 300px;
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: space-around;
    }

    .prize_yt_video_2{
        width: 100%;
        display: flex;
        flex-direction: row;
        justify-content: space-around;
    }
    .prize_yt_content_2{
        width: 95%;
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: space-around;
        margin-bottom: 15px;
    }



    .prize_student_inf{
        width: 100%;
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;
    }
    .prize_student_inf_font{
        font-size: 10px !important;
        font-weight: bolder;
    }
    .prize_student_inf_font_s{
        font-size: 6px !important;
        font-weight: bolder;
    }
    .activity4_wrapper{
        width: 100%;
        display: flex;
        flex-direction: column;
    }
    .Selected_grade_block{
        width: 100%;
        margin-top: 20px;
    }
    .Selected_yt_content{
        width: 250px;
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: space-around;
        /* height: 330px; */
        margin-top: 10px;
    }

    .Selected_yt_content_2{
        width: 100%;
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: space-around;
        margin-bottom: 15px;
        /* height: 330px; */
        margin-top: 10px;
    }

    .Selected_yt_video_2{
        width: 95%;
        display: flex;
        flex-direction: row;
        justify-content: space-around;
    }

    .Select_content{
        width: 100%;
        display: flex;
        flex-direction: row;
        justify-content: center;
        flex-wrap: wrap;
    }
    .Selected_student_inf{
        width: 100%;
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        /* margin-top: -30px; */
    }
    .Selected_student_inf_font{
        font-size: 10px !important;
        font-weight: bolder;
    }
    .Selected_student_inf_font_s{
        font-size: 6px !important;
        font-weight: bolder;
    }

    .activity4{
        margin-top: 20px;
        display: flex;
        align-items: center;
        justify-content: center;
        background-color:#faf9f9;
        background-image: url("../img/so-white.png");
    }


    
    /* ================= */

    .activity5{
        margin-top: 20px;
        display: flex;
        flex-direction: column;
        /*align-items: center;*/
        /*justify-content: center;*/
        background-color:#faf9f9;
        background-image: url("../img/so-white.png");
    }
    .activity5 img {
        width: 100px;
        height: 100px;
        display: flex;
    }
    .nav_title{
        height: 36px;
    }
    .c_text a{
        color: black;
        padding-left: 20px;
        font-size: 10px;
        /*padding-top: 50px;*/
    }
    .c_text a:hover{
        /* color: rgb(241, 26, 26); */
        color:#FF8811;
    }

/* ============================= */



    .popular_img{
        margin-top: -45px;
    }
    .popular_img_2{
        margin-top: -40px;
    }    
    .popular_img_3{
        margin-top: 10px;
    }

    /* 尾 */
    footer{
        width: 95%;
        min-width: 600px;
    }
}