在漸變背景上的透明圖像

Question

我想要獲得背景圖像躺在漸變背景之上，我必須創建另一個div來做到這一點嗎？

#inner_bg { 
    width: 846px; 
    height: 646px; 
    margin: -1px 0 0 0; 
    background: url(../simg/inner_bg.gif) no-repeat 20px 140px; 
    background: #031f34; 
    background: url(data:image/svg+xml;base64,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); 
    background: -moz-linear-gradient(left, #031f34 9%, #03668f 40%, #05b7d1 70%); 
    background: -webkit-gradient(linear, left top, right top, color-stop(9%,#031f34), color-stop(40%,#03668f), color-stop(70%,#05b7d1)); 
    background: -webkit-linear-gradient(left, #031f34 9%,#03668f 40%,#05b7d1 70%); 
    background: -o-linear-gradient(left, #031f34 9%,#03668f 40%,#05b7d1 70%); 
    background: -ms-linear-gradient(left, #031f34 9%,#03668f 40%,#05b7d1 70%); 
    background: linear-gradient(to right, #031f34 9%,#03668f 40%,#05b7d1 70%); 
    filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#031f34', endColorstr='#05b7d1',GradientType=1); 
    float: left; 
    position: relative; 
} 

Answer 1

是的，你需要另一個元素來處理（也許像前一個僞元素），背景是互相替換（當他們是有效的）。

http://jsfiddle.net/fTpaz/2/

#inner_bg { 
    width: 846px; 
    height: 646px; 
    margin: -1px 0 0 0; 
    background: url(data:image/svg+xml;base64,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); 
    background: -moz-linear-gradient(left, #031f34 9%, #03668f 40%, #05b7d1 70%); 
    background: -webkit-gradient(linear, left top, right top, color-stop(9%,#031f34), color-stop(40%,#03668f), color-stop(70%,#05b7d1)); 
    background: -webkit-linear-gradient(left, #031f34 9%,#03668f 40%,#05b7d1 70%); 
    background: -o-linear-gradient(left, #031f34 9%,#03668f 40%,#05b7d1 70%); 
    background: -ms-linear-gradient(left, #031f34 9%,#03668f 40%,#05b7d1 70%); 
    background: linear-gradient(to right, #031f34 9%,#03668f 40%,#05b7d1 70%); 
    filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#031f34', endColorstr='#05b7d1',GradientType=1); 
    float: left; 
    position: relative; 
} 

#inner_bg::before{ 
    content: ' '; 
    position:absolute; 
    left:0; 
    right:0; 
    top:0; 
    bottom:0; 
    background: red; 
    opacity:0.5; 
}​ 

Answer 2

創建另一個鴻溝。在div上方放置漸變背景。使用漸變背景添加高於div的z-index。