<div class="blocks">
<div class="icon"><img src="путь к картинки"></div>
</div>
.blocks{
background: #284d88;
margin: 0;
padding: 0;
width: 980px;
height: 110px;
opacity:0.7;
filter:alpha(opacity=70);
-moz-opacity:0.7;
.blocks {
background: rgba(#284d88, 0.7);
}