.col { float: left; width: 200px; } .col-2 { float: left; width: 400px; } .scope-branch { margin-left: 30px; background-color:rgba(0,0,0,0.06); } body { margin: 10px; } .well-top { border-radius: 4px 4px 0 0; margin-bottom: 0; } .well-bottom { border-radius: 0 0 4px 4px; border-top: none; background-color: #E0E0E0; }