.box-sizing(@boxmodel) {
-webkit-box-sizing: @boxmodel;
-moz-box-sizing: @boxmodel;
box-sizing: @boxmodel;
}
*,
*:before,
*:after {
.box-sizing(border-box);
}
.screenreaders-only {
clip: rect(1px, 1px, 1px, 1px);
position: absolute;
border:0;
}