// widths .full width: 100%; .half width: 50%; .third width: 33.3333%; .two-thirds width: 66.6666%; .quarter width: 25%; .three-quarters width: 75%; .fifth width: 20%; .two-fifths width: 40%; .three-fifths width: 60%; .four-fifths width: 80%; .sixth width: 16.6667%; .eighth width: 12.5%; .tenth width: 10%; .twelfth width: 8.3333%; .grid padding: 0 1.5em 1.5em 0 letter-spacing: -4px .module display: inline-block letter-spacing: normal vertical-align: top width: 25% padding: 0 0 1.5em 1.5em -moz-box-sizing: border-box box-sizing: border-box // at 960px when 4 columns really starts to break @media (max-width: 60em) .module width: 50% .task-column max-height: 18em overflow-y: scroll // at 600px when 2col starts breaking @media (max-width: 37.5em) .grid padding-right: 0 .module width: 100% padding-left: 0 .task-column max-height: none overflow: visible