RmlUi/Samples/tutorial/drag/data/tutorial.rcss

/* Hide the window icon. */
div#title_bar div#icon
{
	display: none;
}

icon
{
	/* The icons are floated left so they appear left-to-right. */
	float: left;

	/* The padding is added to push the text down to the bottom of the element. */
	box-sizing: border-box;
	width: 100dp;
	height: 100dp;
	padding: 60dp 10dp 0dp 10dp;
	margin: 10dp;

	decorator: image( /assets/present.tga );

	font-size: 12dp;
	text-align: center;
	font-effect: shadow(1dp 1dp black);
}