.pdf_li {
    padding: 20px 35px;
    border-bottom: 1px solid #EDEDED;
}

.pdf_li_tit {
    font-family: Roboto-Regular;
    font-weight: 400;
    font-size: 20px;
    color: #333333;
    flex: 1;
    margin-right: 20px;
}

.pdf_li_look {
    width: 27px;
    height: 18px;
    margin-right: 30px;
    background: url('img/demo/look.webp') no-repeat;
    background-size: 100% 100%;
}

.pdf_li_look:hover {
    background: url('img/demo/look2.webp') no-repeat;
    background-size: 100% 100%;
}

.pdf_li_down {
    width: 21px;
    height: 18px;
    background: url('img/demo/down.webp') no-repeat;
    background-size: 100% 100%;
}

.pdf_li_down:hover {
    background: url('img/demo/down2.webp') no-repeat;
    background-size: 100% 100%;
}

@media only screen and (max-width: 950px) {
    .pdf_li {
        padding: 20px 0;
    }
}