我有一个基于 CSS 精灵的 Apple 主题导航栏,您可以在此处查看:
http://www.marioplanet.com/index.asp
现在,由于某种原因,我不知道为什么,“主页”按钮的悬停、按下和活动状态似乎存在问题。出于某种原因,它只是看起来是静态的。
这个文件,http://www.marioplanet.com/css/nav.css
其中有这个代码:
/* GLOBALHEADER */
#globalheader { width: 671px; height: 37px; margin: auto; position: relative; z-index: 100; }
#globalheader #globalnav { margin: 0; padding: 0; zoom: 1; width: 100%;}
#globalheader #globalnav:after { content: "."; display: block; height: 0; clear: both; visibility: hidden; }
#globalheader #globalnav li { display: inline; }
#globalheader #globalnav li a { float: left; width: 103px; height: 37px; text-indent:-1000em; overflow: hidden; background-image:url(/images/globalnav/wanzart.png); _background-image: url(/images/globalnav/wanzart.png); background-repeat: no-repeat; }
#globalheader #globalsearch { background-image: url(/images/globalnav/wanzart.png); _background-image: url(/images/globalnav/wanzart.png); background-repeat: no-repeat; }
/* BUTTONS */
#globalheader #globalnav li#gn-home a { background-position: 0px 0px; }
#globalheader #globalnav li#gn-catalog a { background-position: -103px 0px; }
#globalheader #globalnav li#gn-about a { background-position: -206px 0px; }
#globalheader #globalnav li#gn-contact a { background-position: -309px 0px; }
#globalheader #globalnav li#gn-media a { background-position: -412px 0px; }
/* OVER STATES */
#globalheader #globalnav li#gn-home a:hover { background-position: 0px -37px; }
#globalheader #globalnav li#gn-catalog a:hover { background-position: -103px -37px; }
#globalheader #globalnav li#gn-about a:hover { background-position: -206px -37px; }
#globalheader #globalnav li#gn-contact a:hover { background-position: -309px -37px; }
#globalheader #globalnav li#gn-media a:hover { background-position: -412px -37px; }
/* PRESSED STATES */
#globalheader #globalnav li#gn-home a:active { background-position: 0px -76px; }
#globalheader #globalnav li#gn-catalog a:active { background-position: -103px -76px; }
#globalheader #globalnav li#gn-about a:active { background-position: -206px -76px; }
#globalheader #globalnav li#gn-contact a:active { background-position: -309px -76px; }
#globalheader #globalnav li#gn-media a:active { background-position: -412px -76px; }
/* ON STATES */
#globalheader.home #globalnav li#gn-home a:hover { background-position: 0px 0px !important;}
#globalheader.catalog #globalnav li#gn-catalog a { background-position: -103px -114px !important; }
#globalheader.about #globalnav li#gn-about a { background-position: -206px -114px !important; }
#globalheader.contact #globalnav li#gn-contact a { background-position: -309px -114px !important; }
#globalheader.media #globalnav li#gn-media a { background-position: -412px -114px !important; }
/* GLOBAL SEARCH */
#globalsearch {width: 156px; height: 37px; position: absolute; top:0; right: 0; background-position: 100% 0; background-repeat: no-repeat; text-align: center; border-width: 0px; }
#inputString{background: url(/images/globalnav/searchform.png); padding: 1px 20px 0 20px; width: 113px; height: 20px; margin-top: 7px; border: none; outline: none; }
大概就是问题所在。
我一直在使用 Google 的 DevTools(基本上是 FireBug)来尝试隔离问题,但我没有任何运气。
“主页”按钮状态的选择器显示准确。
源图像(http://marioplanet.com/images/globalnav/wanzart.png)具有实际状态,所以这不是问题..