.img-portrait {
    -webkit-border-radius: 100%;
    -moz-border-radius: 100%;
    border-radius: 100%;
    width: 100%;
}

.img-usage {
    max-width: 350px;
    width: 100%;
}

a.screens{
    width: 16%;
}
.small-row{
    margin-left: 10%
}

[class*="col-"] {
    float: left;
}

[class*="col-3"] {
    width: 100%;
}

[class*="col-2"] {
    width: 100%;
}

[class*="col-3"]:last-of-type {
    margin-right: 0;
}

@media screen and (min-width: 350px) {
    [class*="col-3"] {
        width: 50%;
    }
}

@media screen and (min-width: 500px) {
    [class*="col-2"] {
        width: 50%;
    }
}



@media screen and (min-width: 860px) {
    [class*="col-3"] {
        width: 33.3333333333%;
    }
}

.row {
    display: block;
    padding-top: 20px;
}

.small {
    font-size: 80%;
}