how to put an image before page title in wordpress, with just css!

style.css

header.entry-header {
	display: table;
	padding-bottom: 20px;
}

header.entry-header:before {
  content: url(https://wildflowerstudiobtv.files.wordpress.com/2015/03/flower.png?w=778);
	display: table-cell;
	vertical-align: middle;
}

header.entry-header h1 {
	padding-left: 10px;
	display: table-cell;
	vertical-align: middle;
}