Team:Alberta/Blackboard/July30

 .b1f, .b2f, .b3f, .b4f{font-size:1px; overflow:hidden; display:block;} .b1f {height:1px; background:#e1e1e1; margin:0 5px;} .b2f {height:1px; background:#e1e1e1; margin:0 3px;} .b3f {height:1px; background:#e1e1e1; margin:0 2px;} .b4f {height:2px; background:#e1e1e1; margin:0 1px;} .content {background: #e1e1e1;} .content div {margin-left: 5px;}

