* {
    margin: 0;
    padding: 0;
}
.my-container{
    max-width: 640px;
    margin: 0 auto;
}
.breadcrumbs{
    margin: 10px;
    font-size: 12px;
    color: #666;
    text-align: left;
}
.breadcrumbs a{
    color: #666;
    text-decoration: none;
}
.breadcrumbs a:hover{
    color: #0172ff;
}
/*.clearfix::before, .clearfix::after {*/
    /*display: block;*/
    /*content: '';*/
    /*visibility: hidden;*/
    /*height: 100%;*/
    /*clear: both;*/
/*}*/
.my-gallery {
    width: 100%;
    margin: 0 auto;
    overflow: hidden;
    padding-bottom: 100px;
}
.my-gallery .img-dv {
    width: 31.333333%;
    height: 70px;
    float: left;
    margin: 1%;
    box-sizing: border-box;
    position: relative;
    overflow: hidden;
}
.my-gallery .img-dv a {
    display: block;
    width: 100%;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}
.my-gallery .img-dv a img {
    width: 100%;
    background-color: #eee;
}
@media (min-width: 640px) {
    .my-gallery .img-dv{
        height: 120px;
    }
}