background:#000; background:transparent; filter: progid:DXImageTransform.Microsoft.gradient(startColorstr=#aa000000,endColorstr=#aa000000); /* IE6,IE7 */ -ms-filter: progid:DXImageTransform.Microsoft.gradient(startColorstr=#aa000000,endColorstr=#aa000000); /*ie8*/ background:rgba(0, 0, 0, 0.5); /* FF3+, Saf3+, Opera 10.10+, Chrome */
转载于:https://www.cnblogs.com/sencha/p/3532405.html
