<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;
}