.iconContents { max-height: 100vh; max-height: calc(100vh - 230px); overflow: auto; }
.iconContents div{
    width: 25%;
    display: inline-block;
    vertical-align: top;
    padding: 15px;
    box-sizing: border-box;
    cursor: pointer;
    border: 1px dashed transparent;
}
.iconContents div.active{
    border: 1px dashed #bbb;
}
.iconContents div i{
    font-size: 22px;
    color: #444;
}
.iconContents div span{
    font-size: 14px;
    color: #999;
    margin-left: 5px;
}