Grids.css

/* grids */
@media screen and (max-width: 319px) {.unit {    float: none !important;    width: auto !important;}
}
.line:after,.lastUnit:after {  clear: both;  display: block;  visibility: hidden;  overflow: hidden;  height: 0 !important;  line-height: 0;  font-size: xx-large;  content: " x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x ";}
.line {*zoom:1;}
.unit {  float: left;}
.size1of1 {  float: none;}
.size1of2 {  width: 50%;}
.size1of3 {  width: 33.33333%;}
.size2of3 {  width: 66.66666%;}
.size1of4 {  width: 25%;}
.size3of4 {  width: 75%;}
.size1of5 {  width: 20%;}
.size2of5 {  width: 40%;}
.size3of5 {  width: 60%;}
.size4of5 {  width: 80%;}
.lastUnit {  display: table-cell;  float: none;  width: auto;*display:block;*zoom:1;  _position: relative;  _left: -3px;  _margin-right: -3px;}