* {
    box-sizing: border-box;
}
.header {
    border-style: solid;
    border-color: #2BD32B;
    padding: 15px;
}
.row:after {
    content: "";
    clear: both;
    display: block;
}
[class*="col-"] {
    float: left;
    /*border-style: solid;
    border-color: #4990A4 #4990A4 #DFF1DF #DFF1DF;*/
    padding: 15px;
}
.col-1 {width: 8.33%;}
.col-2 {width: 16.66%;}
.col-3 {width: 25%;}
.col-4 {width: 33.33%;}
.col-5 {width: 41.66%;}
.col-6 {width: 50%;}
.col-7 {width: 58.33%;}
.col-8 {width: 66.66%;}
.col-9 {width: 75%;}
.col-10 {width: 83.33%;}
.col-11 {width: 91.66%;}
.col-12 {width: 100%;}