.one-half,
.one-third,
.one-fourth { position: relative; margin-right: 4%; float: left; margin-bottom: 20px; } .one-half { width: 48%; }
.one-third { width: 30.66%; }
.one-fourth { width: 22%; } .last { margin-right: 0 !important; clear: right; } @media only screen and (max-width: 767px) { .one-half, .one-third, .one-fourth { width: 100%; margin-right: 0; } }