litejs/css/clearfix.css

/**
 *
 * THANKS: Nicolas Gallagher - micro clearfix http://nicolasgallagher.com/micro-clearfix-hack/
 *
 * For modern browsers
 * 1. The space content is one way to avoid an Opera bug when the
 *    contenteditable attribute is included anywhere else in the document.
 *    Otherwise it causes space to appear at the top and bottom of elements
 *    that are clearfixed.
 * 2. The use of `table` rather than `block` is only necessary if using
 *    `:before` to contain the top-margins of child elements.
 * 3. For IE 6/7 only
 *    Include this rule to trigger hasLayout and contain floats.
 */

.cf:before,
.cf:after {
	content: " ";   /* 1 */
	display: table; /* 2 */
}
.cf,
.cf:after {
	clear: both;
}

.cf {
	*zoom: 1;       /* 3 */
}