background: url(../images/ranking.png) 174px center no-repeat,linear-gradient(to bottom,#555859,#3c3f40);
background: url(../images/ranking.png) 174px center no-repeat,linear-gradient(to bottom,#555859,#3c3f40);
本文标题：关于css背景图片和渐变背景色的共存问题
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