您不能将背景图像和渐变添加到同一元素。至于引号,它们是单引号、双引号还是根本没有引号都没有关系。只要确保图像路径正确。
如果你想要两者,你可以这样做:
http://jsfiddle.net/vjEh7/
CSS:
footer {
background: rgb(169,3,41);
background: -moz-linear-gradient(top, rgba(169,3,41,1) 0%, rgba(143,2,34,1) 44%, rgba(109,0,25,1) 100%);
background: -webkit-gradient(linear, left top, left bottom, color-stop(0%,rgba(169,3,41,1)), color-stop(44%,rgba(143,2,34,1)), color-stop(100%,rgba(109,0,25,1)));
background: -webkit-linear-gradient(top, rgba(169,3,41,1) 0%,rgba(143,2,34,1) 44%,rgba(109,0,25,1) 100%);
background: -o-linear-gradient(top, rgba(169,3,41,1) 0%,rgba(143,2,34,1) 44%,rgba(109,0,25,1) 100%);
background: -ms-linear-gradient(top, rgba(169,3,41,1) 0%,rgba(143,2,34,1) 44%,rgba(109,0,25,1) 100%);
background: linear-gradient(top, rgba(169,3,41,1) 0%,rgba(143,2,34,1) 44%,rgba(109,0,25,1) 100%);
filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#a90329', endColorstr='#6d0019',GradientType=0 );
}
div {
width: 150px;
height: 160px;
background: url(http://www.zeldezine.info/demo/img/logo_bottom.png) no-repeat;
}
HTML:
<footer>
<div></div>
</footer>