.container-layout-2{
    background-color: #C6C6C6;
    color: white;
}
.container-layout-3{
    position: relative;
    background: #ededed;
}
.container-layout-3>.container{
    padding-top: 20px;
    padding-bottom: 20px;
}
@media (min-width: 768px) {
    .container-layout-3:before{
        background-color: #ededed;
        width: calc(50% - 30px);
        height: 100%;
        position: absolute;
        content: "";
        left: calc(50% + 30px);
    }
}