silverstripe-dms/scss/DMSDocumentCMSFields.scss

#FileP{
	.fieldgroup-field{
		width:100%;
		.cms-file-info-data{
			width:400px;
		}
		.fieldholder-small{
			margin-top: 5px;
			label{
				width:auto;
				margin-left: 0;
				padding-top: 0;
				margin-right: 10px;
				font-weight: bold;
			}
			.readonly{
				font-style:italic;
				color: #666;
			}
		}
	}
}

#DocumentTypeID{
	ul{
		input[type="radio"]{
			display:none;
		}
		li{
			display:inline;
			float: none;
			padding:4px;
			&.selected{
				border-bottom:1px solid #555;
				border-top:1px solid #e6e6e6;
			}
			label{
				//display: inline-block;
				//padding: 4px 10px;
			}
		}
	}
}