sprite.less

.icon-sprite { display: inline-block; background-image: url(../images/sprite.png); background-size: 252px 200px; }
.icon-logo { width: 200px; height: 200px; background-position: 0px 0px; }
.icon-user-question { width: 32px; height: 36px; background-position: -220px 0px; }