.xb:after, .xl:after, .xr:after     { content: "."; display: block; height: 0; visibility: hidden; }
.xb:after 							{ clear: both; }
.xl:after 							{ clear: left; }
.xr:after 							{ clear: right; }
.xr,.xl,.xb 						{ display: inline-block; } /* \*/
* html .xr,* html .xl,* html .xb 	{ height: 1%; }
.xr,.xl,.xb 						{ display: block; } /* */