<h1 class="cp_h1title">見出しテキスト</h1>

.cp_h1title{
	position: relative;
	padding: 4px 4px 10px 4px;
}
 
.cp_h1title:before{
	content:''; 
	height:15px; 
	width: 100%;
	display:block; 
	position:absolute; 
	bottom:13px; 
	left:0px; 
	background-color:  rgba(144, 202, 249,1);
	filter:alpha(opacity=50);
	opacity:0.50;
	box-shadow: 0px 3px 3px 3px rgba(144, 202, 249,0.5) inset;
}