6.md

index.html

.column {
	width: 220px;
	float: left;
	padding-bottom: 100px;
}

.portlet {
	margin: 0 1em 1em 0;
}

.portlet-header {
	margin: 0.3em;
	padding-bottom: 4px;
	padding-left: 0.2em;
}

.portlet-header .ui-icon {
	float: right;
}

.portlet-content {
	padding: 0.4em;
}

.ui-sortable-placeholder {
	border: 1px dotted black;
	visibility: visible !important;
	height: 50px !important;
}

.ui-sortable-placeholder * {
	visibility: hidden;
}