html - how to make a div transparent without affecting the child in CSS 3? -


how make div transparent without affecting child in css 3

here's html code:

<div id="icon">    <ul>       <li><a href=""><img src="iconpaper.png"></a></li>       <li><a href=""><img src="movies.png"></a></li>       <li><a href=""><img src="phone.png"></a></li>       <li><a href=""><img src="stocks.png"></a></li>       <li><a href=""><img src="love.png"></a></li>    </ul> </div>  <div id="search">     search </div>  </div>

and here's css:-

#header{    background-color:#000;    width:1349px;    height:60px;    position:fixed;    z-index:2;    opacity:0.7;    } #icon{    float:left;    padding:10px;    } li{    display:inline;   } #header img{    width:35px;    height:35px;   } #search{    float:right;    color:#e5e5e5;    padding:20px;    font-size:20px;   }

so, want make #header div tranparent , fixed without affecting #icon , #search div.

instead of using opacity, use rgba() background: rgba(0,0,0,.7) a stands alpha/opacity. change below block of code like

#header{    background-color: rgba(0,0,0,.7); /* 0.7 opacity black */    width:1349px;    height:60px;    position:fixed;    z-index:2; }

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