.learning-question div.radio span{-webkit-font-smoothing:antialiased}.learning-question div.radio,{display:-moz-inline-box;display:inline-block;vertical-align:middle}.learning-question div.radio:focus{outline:0}.learning-question div.radio,.learning-question div.radio *{margin:0;padding:0}.learning-question div.radio{position:relative}.learning-question div.radio,.learning-question div.radio span,.learning-question div.radio input{width:13px;height:13px;float:left}.learning-question div.radio span{background:url(../images/radio.png) left 0 no-repeat;display:-moz-inline-box;display:inline-block;text-align:center}.learning-question div.radio span.checked{background-position:0 -14px}.learning-question div.radio input{opacity:0;border:none;background:0 0;display:-moz-inline-box;display:inline-block;text-align:center}.learning-question div.radio.active span.checked{background-position:0 -14px}.learning-question div.radio{margin:3px 5px 0 0}