.block.text > div::after{
    content: ".";
    display: block;
    height: 0;
    clear: both;
    visibility: hidden;
}
.img-left{
    float: left;
    margin-right: 20px;
    margin-bottom: 20px;
}
.img-right{
    float: right;
    margin-left: 20px;
    margin-bottom: 20px;
}