.clear {clear: both}
.left {float: left}
.left_space {margin-left: 1em}
.right {float: right}
.full_width {width: 100%}
.semi_transparent {opacity: 0.9; filter: alpha(opacity=85)}
.centered {margin-left: auto; margin-right: auto; text-align: center}
.inline {display: inline}
.red {color: red}
.bold {font-weight: bold}
.italic {font-style: italic}
.align_left {text-align: left}
.top_space {margin-top: 1em}
.bottom_space {margin-bottom: 1em}