兼容IE6的圖片圓角邊框CSS

純CSS實現的圖片圓角邊框效果,兼容IE6.
實現原理很簡單,利用絕對定位,使一個背景為PNG圖片的邊框覆蓋在原始圖片上面.而兼容IE6,本文用的是一段JS來讓萬惡的萬萬人詛咒的IE6識別PNG圖片的.當然,你還可以用濾鏡的方式讓IE6實現PNG效果.本文後面我會附上兩種解決方案.個人比較推崇用JS來實現IE6PNG,適應性比較強,但如果你只有一兩處用到PNG,完全可以用濾鏡的方式來實現.
核心CSS代碼:

.i_roundimg{ background:url(http://mrthink.net/demo/images/100508.png) no-repeat;cursor:pointer;width:60px;height:60px;position:absolute;}

DEMO用到的PNG背景圖片:
另外附上兩種解決IE6下PNG圖片的方案:
JavaScript讓IE6識別PNG(適應性強,適應於背景PNG和頁面中的PNG):

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EvPNG.fix('div,span');  //EvPNG.fix('@Mr.Think提示你:請在此處設置包含透明PNG圖片的標簽'),多個標簽之間用英文逗號隔開.

IE濾鏡讓IE6實現PNG效果(適應性差,一般用於僅一兩處用到PNG背景的情況):

filter:progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://mrthink.net/demo/images/100508.png',sizingMethod='scale');