html[data-theme=dark]{
	.postbox{
		background: #111;
		border: 1px solid #222;

		.postbox-header{
		    background: -webkit-linear-gradient(#222, #1e1e1e);
		    background: -o-linear-gradient(#222, #1e1e1e);
		    background: -moz-linear-gradient(#222, #1e1e1e);
		    background: linear-gradient(#222, #1e1e1e);
			border-left: 3px solid #f44336;

			.handle-actions{
				.order-higher-indicator,
				.order-lower-indicator,
				.toggle-indicator{
					color: #fff;
				}
			}

			&:hover{
				opacity: .8;
			}
		}
	}

	.postbox-ajax{
		.handle-actions{
			display: none;
		}
	}

	.meta-box-sortables.ui-sortable:empty {
    	border-color: #444;
	}
}