標籤：
製作斜角菜單就是利用邊框的接角構造一個斜角，每一個功能表項目的a元素，放置一個span元素，設定為corner類，實現斜角效果。
設定a元素為相對定位，a是span的子項目設定其為絕對位置，再設定span的top和left為零，以便使斜角定位在以邊框為界的左上方。
以下代碼顯示效果如下
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><title>斜角菜單</title><style type="text/css">#menu {font-family:arial;font-size:14px; }#menu a,#manu a:visited{text-decoration:none;float:left;color:#fff;display:block;background-color:#00f;padding:6px;margin:1px 0 0 1px;position:relative;}#menu a .corner{position:absolute;height:0;width:0;overflow:hidden;border-bottom:solid 6px #00f;border-left:solid 6px #fff;top:0;left:0;}</style></head><body><div id="menu"><a href="#"><span class="corner"></span>菜單1</a><a href="#"><span class="corner"></span>菜單2</a><a href="#"><span class="corner"></span>菜單3</a><a href="#"><span class="corner"></span>菜單4</a><a href="#"><span class="corner"></span>菜單5</a></div></body></html>
css學習：斜角菜單的製作
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