.center { text-align: center; }
.left { text-align: left; }
.right { text-align: right; }
.top { vertical-align: top; }
.middle { vertical-align: middle; }
.bottom { vertical-align: bottom; }
.nowrap { white-space: nowrap; }
.bold { font-weight: bold; }
.italic { font-style: italic; }
.clear { clear: both; }
