/*ul {*/
/*    overflow: hidden;*/
/*}*/


.content_bul li {
    width: 10%;
    float: left;
    box-sizing: border-box;
    padding-right: 10px;
    padding-bottom: 10px;
    list-style: none;
}

.activity {
    border: 2px solid red;
}

/*div {*/
/*    width: 100%;*/
/*    padding-top: 100%;*/
/*    position: relative;*/
/*}*/

.content_bul img {
    /*max-height: 100%;*/
    /*max-width: 100%;*/
    vertical-align: middle;
}