.ratioWrapper{
    position: relative;
}
.ratioWrapper > *{
    bottom: 0;
    left: 0;
    position: absolute;
    right: 0;
    top: 0;
}
.ratioWrapper::after{
    clear: both;
    content: "";
    display: table;
}
.ratioWrapper::before{
    content: "";
    display: block;
    float: left;
    min-width: 100%;
    padding-top: 100%;
    width: 100%;
}
.ratioWrapper.ratio50::before{
    padding-top: 50%;
}
.ratioWrapper.ratio60::before{
    padding-top: 60%;
}
.ratioWrapper.ratio70::before{
    padding-top: 70%;
}
.ratioWrapper.ratio80::before{
    padding-top: 80%;
}
.ratioWrapper.ratio35mm::before{
    padding-top: 66.6666%;
}
.ratioWrapper.ratio35mmVert::before{
    padding-top: 150%;
}
.ratioWrapper.ratio2-1::before{
    padding-top: 50%;
}
.ratioWrapper.ratio35mmVert::before{
    padding-top: 150%;
}