.certification {
    padding: 80px 0;
    width: 100%;
}

.certification .container {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
}

.certification .container .pdf_list {
    width: 52%;
}

.certification .container .pdf_list li {
    padding: 20px 30px;
    background: #FFFFFF;
    transition: 0.3s;
}

.certification .container .pdf_list li>a {
    display: flex;
    align-items: center;
}

.certification .container .pdf_list li>a .label {
    font-size: 52px;
    color: #fe5359;
    font-weight: 400;
}

.certification .container .pdf_list li>a .title {
    font-weight: 400;
    font-size: 20px;
    color: #333333;
    text-transform: capitalize;
    margin-left: 20px;
}

.certification .container .pdf_list li:hover,
.certification .container .pdf_list li.active {
    background: #F1F1F1;
}

.certification .container .pdf_list li:hover .title,
.certification .container .pdf_list li.active .title {
    color: #333333;
}

.certification .container .pdf_show {
    margin-left: 40px;
    flex: 1;
    height: 1000px;
}

.certification .container .pdf_show>embed {
    width: 100%;
    height: 100%;
}

@media(max-width:1680px) {
    .certification {
        padding: 70px 0;
    }

    .certification .container .pdf_list {
        width: 50%;
    }

    .certification .container .pdf_list li {
        padding: 20px 25px;
    }

    .certification .container .pdf_list li>a .label {
        font-size: 48px;
    }

    .certification .container .pdf_list li>a .title {
        font-size: 18px;
    }
}

@media(max-width:1440px) {
    .certification {
        padding: 60px 0;
    }

    .certification .container .pdf_list li {
        padding: 15px 20px;
    }

    .certification .container .pdf_show {
        margin-left: 30px;
        height: 800px;
    }
}

@media(max-width:1280px) {
    .certification {
        padding: 50px 0;
    }

    .certification .container .pdf_list li {
        padding: 15px 15px;
    }

    .certification .container .pdf_list li>a .label {
        font-size: 42px;
    }

    .certification .container .pdf_list li>a .title {
        font-size: 16px;
        margin-left: 10px;
    }

    .certification .container .pdf_show {
        margin-left: 20px;
        height: 600px;
    }
}

@media(max-width:1024px) {
    .certification {
        padding: 40px 0;
    }

    .certification .container .pdf_list {
        width: 100%;
    }

    .certification .container .pdf_show {
        display: none;
    }
}

@media(max-width:768px) {
    .certification {
        padding: 30px 0;
    }

    .certification .container .pdf_list li {
        padding: 10px 10px;
    }

    .certification .container .pdf_list li>a .label {
        font-size: 36px;
    }

    .certification .container .pdf_list li>a .title {
        font-size: 14px;
        margin-left: 10px;
    }
}

@media(max-width:600px) {}

@media(max-width:480px) {}

@media(max-width:390px) {}