*[unselectable="on"] {
-moz-user-focus: ignore;
-moz-user-select: none;
-webkit-user-select: none;
-khtml-user-select: none;
-o-user-select: none;
user-select: none;
}

.clearfix:after {
    content: ".";
    display: block;
    height: 0;
    clear: both;
    visibility: hidden;
}
.clearfix {
	zoom: 1; /* IE5.5+ */
	_height: 1%; /* IE5-6 */
}

code{
    white-space: pre;
}