contents.css

.ymaps {
    padding: 8px;
    margin: 10px;
    background: #eee;
    border-radius: 8px;
    border: 1px solid #ddd;
    box-shadow: 0 1px 1px #fff inset, 0 -1px 0px #ccc inset;
}

.ymaps:before,
.ymaps:after {
    content: " ";
    display: table;
}
.ymaps:after {
    clear: both;
}

.ymaps > .ymaps-text,
.ymaps > .ymaps-map {
    float: left;
    box-sizing: border-box;
}

.ymaps > .ymaps-text {
    box-shadow: 0 1px 1px #ddd inset;
    border: 1px solid #cccccc;
    border-radius: 5px;
    background: #fff;
}

.ymaps > .ymaps-map:after {
    content: '';
    display: block;
    position: absolute;
    top: 0;
    left: 15px;
    width: 97%;
    height: 100%;
    background: url('bg.jpg');
}

.col-md-4,
.col-md-8 {
    position: relative;
    min-height: 1px;
    padding-left: 15px;
    padding-right: 15px;
}

.col-md-4 {
    width: 33.33333333%;
}

.col-md-8 {
    width: 66.66666667%;
}