CSS画方块也许谁都会,但是你知道吗?通过灵活的运用div+css技术,用CSS也能画出各种形状的三角形,下面是一些三角形实例实现代码:
[CSS在线]-示例代码<!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> <title>CSS在线-CSS画三角形</title> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <style> *{ margin:0; padding:0; font-size:12px; font-family:Verdana, "宋体", Arial; line-height:1.8; list-style:none;} #info,#nav{ margin:50px; border:1px dashed #FF3300; background:#FFFFCC; padding:50px;} #info div{background:#FF0000; width:0px; height:0px; overflow:hidden; margin-bottom:10px;} /*三角形的CSS写法*/ #com_a{ border-top:10px solid #FFFFCC;border-left:10px solid #FF3300;border-bottom:10px solid #FFFFCC;} #com_b{ border-top:10px solid #FFFFCC;border-right:10px solid #FF3300;border-bottom:10px solid #FFFFCC;} #com_c{ border-top:10px solid #FFFFCC;border-right:10px solid #FF3300;border-bottom:10px solid #FFFFCC;border-left:10px solid #FF3300;} #com_d{ border-top:10px solid #FF3300;border-right:10px solid #FFFFCC;border-bottom:10px solid #FF3300;border-left:10px solid #FFFFCC;} #com_e{ border-top:10px solid #FFFFCC;border-left:10px solid #FF3300;} #com_f{ border-top:10px solid #FF3300;border-right:10px solid #FFFFCC;border-left:10px solid #FFFFCC;} #com_g{ border-right:10px solid #FFFFCC;border-bottom:10px solid #FF3300;border-left:10px solid #FFFFCC;} #com_h{ border-top:10px solid #FF3300;border-bottom:10px solid #FF3300;border-left:10px solid #FFFFCC;} #com_i{ border-top:10px solid #FF3300;border-right:10px solid #FF3300;border-bottom:10px solid #FF3300;border-left:10px solid #FFFFCC;} </style> </head> <body> <div id="info"> <h1>三角形的CSS写法</h1> <div id="com_a"></div> <div id="com_b"></div> <div id="com_f"></div> <div id="com_g"></div> <div id="com_c"></div> <div id="com_d"></div> <div id="com_e"></div> <div id="com_h"></div> <div id="com_i"></div> </div> </body> </html>
CSS实现的三角形的一个典型应用就是在导航菜单前显示当前选择的导航菜单项,不用图片,直接用纯CSS即可完成,下面是实例代码:
[CSS在线]-示例代码<!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> <title>CSS在线</title> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <style> *{ margin:0; padding:0; font-size:12px; font-family:Verdana, "宋体", Arial; line-height:1.8; list-style:none;} #nav{ margin:50px; border:1px dashed #FF3300; background:#FFFFCC; padding:50px;} a:link,a:visited{color:#FF6600;text-decoration: none;} a:hover,a:active{ color:#FF0000;} #nav a span{overflow:hidden; border-top:6px solid #FFFFCC;border-left:6px solid #FFFFCC;border-bottom:6px solid #FFFFCC; height:0px; width:0px; margin:2px 2px 0 -10px; position:absolute} #nav a:hover span{background:#CC3300;border-top:6px solid #FFFFCC;border-left:6px solid #FF3300;border-bottom:6px solid #FFFFCC;overflow:hidden; float:left;} </style> </head> <body> <div id="nav"> <h1>CSS实现三角行的一个应用实例</h1> <ul> <li><a href="http://www.csscss.org" target="_blank"><span></span>CSS在线</a></li> <li><a href="http://www.csscss.org" target="_blank"><span></span>导航菜单1</a></li> <li><a href="http://www.csscss.org" target="_blank"><span></span>导航菜单2</a></li> <li><a href="http://www.csscss.org" target="_blank"><span></span>导航菜单3</a></li> <li><a href="http://www.csscss.org" target="_blank"><span></span>导航菜单4</a></li> </ul> </div> </body> </html>