解决方案与1个股利和NO透明图像:
可以使用multibackground CSS3特性,并把两个背景:一个与图像后,再以透明面板在它(因为我觉得没有办法设置直接背景图像的不透明度):
background: -moz-linear-gradient(top, rgba(0, 0, 0, 0.7) 0%, rgba(0, 0, 0, 0.7) 100%), url(bg.png) repeat 0 0, url(https://cdn.sstatic.net/stackoverflow/img/apple-touch-icon.png) repeat 0 0;
background: -moz-linear-gradient(top, rgba(255,255,255,0.7) 0%, rgba(255,255,255,0.7) 100%), url(https://cdn.sstatic.net/stackoverflow/img/apple-touch-icon.png) repeat 0 0;
background: -webkit-gradient(linear, left top, left bottom, color-stop(0%,rgba(255,255,255,0.7)), color-stop(100%,rgba(255,255,255,0.7))), url(https://cdn.sstatic.net/stackoverflow/img/apple-touch-icon.png) repeat 0 0;
background: -webkit-linear-gradient(top, rgba(255,255,255,0.7) 0%,rgba(255,255,255,0.7) 100%), url(https://cdn.sstatic.net/stackoverflow/img/apple-touch-icon.png) repeat 0 0;
background: -o-linear-gradient(top, rgba(255,255,255,0.7) 0%,rgba(255,255,255,0.7) 100%), url(https://cdn.sstatic.net/stackoverflow/img/apple-touch-icon.png) repeat 0 0;
background: -ms-linear-gradient(top, rgba(255,255,255,0.7) 0%,rgba(255,255,255,0.7) 100%), url(https://cdn.sstatic.net/stackoverflow/img/apple-touch-icon.png) repeat 0 0;
background: linear-gradient(to bottom, rgba(255,255,255,0.7) 0%,rgba(255,255,255,0.7) 100%), url(https://cdn.sstatic.net/stackoverflow/img/apple-touch-icon.png) repeat 0 0;
不能使用rgba(255,255,255,0.5)
,因为它单独仅在背部接受了,所以我用生成每个浏览器梯度在这个例子中(这就是为什么它是太长)。 但是,这个概念是:不透明度
background: tranparentColor, url("myImage");
http://jsfiddle.net/pBVsD/1/
设置背景图片:http://stackoverflow.com/questions/4183948/css-set-background-image-with-opacity –