/*Content CSS*/
#certification{overflow: hidden; }
section > article{padding: 100px 0 120px;}
.sub_inner{width: 100%; max-width: 1400px; padding: 0 50px; margin: 0 auto;}

/* tit */
.fs_60{font-size: 60px; font-weight: 800; line-height: 1; text-align: center;}
.tit_bar::before{content: ''; display: block; width: 50px; height: 5px; background-color: #a2bc4c; margin: 0 auto 15px;}

/* font-size */
.fs_14{font-size: 14px; font-weight: 400; line-height: 22px; color: #333; }


.cer_list{display: flex; flex-wrap: wrap; margin-top: 70px;}
.cer_list li{width: calc(20% - 16px); margin-right: 20px;}
.cer_list li:nth-child(5n){margin-right: 0;}
.cer_list li:nth-child(n+6){margin-top: 45px;}
.cer_list li span{position: relative; padding-left: 15px; margin-top: 15px; color: #333; display: block;}
.cer_list li span::before{content: ''; display: block; width: 6px; height: 6px; background-color: #a2bc4c; position: absolute; top: 9px; left: 0;}
.cer_list li a{display: block;}
.cer_list li .img{border: solid 1px #ddd; overflow: hidden; transition: .3s; position: relative;}
.cer_list li .img::before{content: ''; display: block; width: 100%; height: 100%; background: url('../img/plus.png') center no-repeat rgb(162, 188, 76,.85); opacity: 0; transition: .3s; position: absolute; top: 0; left: 0;}

@media screen and (min-width:1025px){
    .cer_list li:hover .img::before{opacity: 1;}
}


@media screen and (max-width:1400px){


}
@media screen and (max-width:1280px){
    .fs_60{font-size: 50px;}
    .tit_bar::before{width: 40px; margin: 0 auto 13px;}

    .cer_list{margin-top: 50px;}
    .cer_list li{width: calc(25% - 15px);}
    .cer_list li:nth-child(5n){margin-right: 20px;}
    .cer_list li:nth-child(4n){margin-right: 0;}
    .cer_list li:nth-child(n+5){margin-top: 35px;}

}

@media screen and (max-width:1024px){
    section > article{padding: 50px 0;}
    .sub_inner{padding: 0 30px;}
    /* tit */
    .fs_60{font-size: 40px;}
    .tit_bar::before{width: 35px;}

    /* font-size */
    .cer_list{margin-top: 40px;}
    .cer_list li{width: calc(33.3% - 10px); margin-right: 15px;}
    .cer_list li:nth-child(5n){margin-right: 15px;}
    .cer_list li:nth-child(4n){margin-right: 15px;}
    .cer_list li:nth-child(3n){margin-right: 0;}
    .cer_list li:nth-child(n+4){margin-top: 25px;}
    .cer_list li span{padding-left: 12px; margin-top: 10px;}
    .cer_list li span::before{width: 5px; height: 5px; top: 9px}


}
@media screen and (max-width:768px){


}
@media screen and (max-width:640px){
    .sub_inner{padding: 0 20px;}
    .fs_60{font-size: 35px;}
    .tit_bar::before{width: 30px; }

    /* font-size */
    .fs_14{font-size: 13px;}
    .cer_list{margin-top: 30px;}
    .cer_list li{width: calc(50% - 5px); margin-right: 10px !important;}
    .cer_list li:nth-child(2n){margin-right: 0 !important;}
    .cer_list li:nth-child(n+3){margin-top: 20px;}
    .cer_list li span{padding-left: 10px; margin-top: 10px;}
    .cer_list li span::before{width: 4px; height: 4px;}


}
@media screen and (max-width:480px){

}