url(/templates/mytheme/fonts/dayssansblack.ttf);
<ul>
<li>
<span>1111</span>
<span>2222</span>
</li>
<li>
<span>3333</span>
<span>4444</span>
</li>
</ul>
var form = $( "#myform" );
form.validate();
$( "button" ).click(function() {
$("input.valid").removeClass("valid");
$("label.need-class").addClass("valid");
});