yes
change the margins and have a small width change on the block.
.ubbcode-block {
margin: 2px 0;
width:98%;
background: #1A1A1A;
padding: 0px;
border-spacing: 0px;
border: 1px solid #800;
-moz-border-radius: 4px;
-moz-box-shadow: 1px 1px 3px #931A1C;
}
.ubbcode-header {
display: block;
padding: 4px;
color: #D8CCCA;
border-bottom: 1px solid #800;
}
.ubbcode-body {
padding: 4px;
width: 100%;
overflow: auto;
display: block;
border: none;
}
4 levels deep
ignore my color selections, but take margin, padding, width stuff