.list_title{
    width: 100%;
    font-size: 28px;
    color: #202020;
    background: url(../images/about/list.jpg)center top no-repeat;
    padding-top: 108px;
    text-align: center;
    margin: 100px 0 40px;
}
.about-list{
    width: 100%;
}
.about-list:after{
    content: '';
    display: block;
    clear: both;
}
.about-list .item{
    width: 25% !important; 
    float: left;
    margin-bottom: 30px;
}
.about-list .about_col{
    padding: 0 18px;
}

.about-list .about_col:hover .pic img{
    -webkit-transform: scale(1.1);
       -moz-transform: scale(1.1);
        -ms-transform: scale(1.1);
         -o-transform: scale(1.1);
            transform: scale(1.1);
    -webkit-transition: all .3s ease;
       -moz-transition: all .3s ease;
        -ms-transition: all .3s ease;
         -o-transition: all .3s ease;
            transition: all .3s ease;
}
.about-list .pic{
    max-width: 225px;
    max-height: 225px;
    padding: 10px;
    border: 1px solid #DDDDDD;
    border-radius:200px;
    box-shadow:0px 0px 8px rgba(20%,20%,40%,0.2);
    margin: 0 auto;
}
.about-list .pic img{
    max-width: 100%;
    max-height: 100%;
    height: auto !important;
    -webkit-border-radius:200px;
    border-radius:200px;
}
.about-list .description{
    color: #797979;
    font-size: 14px;
}
.about-list .description:before{
    content: '';
    display: block;
    width: 20px;
    height: 20px;
    margin: 0 auto;
    background: url(../images/about/list_icon.png)no-repeat;
    margin-bottom: 10px;
}
@media screen and (max-width: 1080px) {
.about-list .item{
    width: 50% !important; 
    float: left;
}
}
@media screen and (max-width: 768px) {
.about-list .item{
    width: 100% !important; 
    float: left;
}
}