#content{
    text-align: center;
    line-height: 1;
}
#section-1{
    height: 584px;
    margin-bottom: -292px;
}
.download-btn{
    width: 200px;
    height: 54px;
    line-height: 54px;
    background: #ffce3d;
    color: #2c2c2c;
    text-align: center;
    display: block;
    font-size: 18px;
    border-radius: 4px;
    margin: 0 auto;;
    margin-top: 30px;
    font-weight: bold;
}
.video-wrapper{
    width: 960px;
    height: 676px;
    background: #dfdfdf;
    margin: 0 auto;
}
.sub-section{
    overflow: hidden;
    padding: 60px 0;
    display: flex;
    align-items: center;
}
.text{
    width: 50%;
    text-align: left;
    padding-right: 48px;
}
.text>p{
    color: #666;
}
.video{
    width: 600px;
    height: 600px;
    position: relative;
}
#batch-download .video{
    width: 600px;
    height: 530px;
}
.video .v{
    position: absolute;
    width: 100%;
    height: 100%;
    background: grey;
    display: none;
}
.video video{
    width: 100%;
    height: 100%;
    border: 0;
    outline: none;
}
.v.active{
    display: block;
}
.sub-section-video-first .text{
    padding-left: 48px;
}
.sub-section-video-first .video{
    order: -1;
}
h2{
    font-size: 36px;
    margin-bottom: 40px;
}
h3{
    font-size: 36px;
    padding-bottom: 24px;
}
h4{
    font-size: 18px;
    padding-bottom: 8px;
    color: #313c4b;
}
.leaf{
    padding-left: 80px;
    position: relative;
    height: 70px;
    padding-top: 14px;
    cursor: default;
}
.leaf p{
    font-size: 14px;
    color: #7c8583;
}
.leaf.active{
    background: #f3f4f6;
}
.leaf .icon{
    position: absolute;
    left: 28px;
    top: 23px;
    text-align: center;
    width: 24px;
    height: 24px;
}
.leaf .icon img{
    max-width: 24px;
    max-height: 24px;
}
.leafs{
    padding-top: 40px;
}
#undraw{
    width: 660px;
    height: 489px;
}
#extension-content-overlay{
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.3);
}
#extension-content{
    position: absolute;
    width: 800px;
    top: 0px;
    z-index: 1;
    margin-left: 50%;
    left: -400px;
}
#footer{
    position: relative;
}
#gs-desc{
    font-size: 12px;
    color: #666;
    width: 600px;
    margin: 0 auto;
    margin-top: 34px;
}