#download {
    position: relative;
}

#download .item .pdf {
    width: 20px;
    height: 24px;
    display: inline-block;
    background: url(../img/pdf2.png) no-repeat center center;
    background-size:100% 100%;
    position: relative;
    top: 5px;
    left: 0;
    margin-right: 8px;
}

#download .item:hover .pdf {
    background: url(../img/pdf1.png) no-repeat center center;
    background-size:100% 100%;
}

#download .item .download_icon {
    width: 20px;
    height: 20px;
    float: right;
    background: url(../img/download2.png) no-repeat center center;
    background-size:100% 100%;
    position: relative;
    top: 8px;
    left: 0;
    margin-right: 8px;
}

#download .item:hover .download_icon {
    background: url(../img/download1.png) no-repeat center center;
    background-size:100% 100%;
}

#download .download{
    padding: 12px 10px 0;
    box-sizing: border-box;
}

#download .download .item{
    line-height: 34px;
    box-sizing: border-box;
}
.download>a{
    text-decoration: none;
    color: #333;
}