一：border
<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title></title> <style> *{margin:0px;padding:0px;} .wrap{width:500px;height:200px;margin:100px auto;} .wrap .con{width:400px;height:60px;border-left:5px solid purple;background: #ccc;} </style> </head> <body> <div class="wrap"> <div class="con"></div> </div> </body> </html>
二：伪类
<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title></title> <style> *{margin:0px;padding:0px;} .wrap{width:500px;height:200px;margin:100px auto;} .wrap .con{width:400px;height:60px;background: #ccc;} .wrap .con:after{display: block;content:"";width:5px;height:60px;background: purple;} </style> </head> <body> <div class="wrap"> <div class="con"></div> </div> </body> </html>
三:box-shadow
<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title></title> <style> *{margin:0px;padding:0px;} .wrap{width:500px;height:200px;margin:100px auto;} .wrap .con{width:400px;height:60px;background: #ccc;box-shadow:-5px 0px 0px purple;} </style> </head> <body> <div class="wrap"> <div class="con"></div> </div> </body> </html>
四：filter:drop-shadow
<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title></title> <style> *{margin:0px;padding:0px;} .wrap{width:500px;height:200px;margin:100px auto;} .wrap .con{width:400px;height:60px;background: #ccc; -webkit-filter:drop-shadow(-5px 0 0 deeppink);} </style> </head> <body> <div class="wrap"> <div class="con"></div> </div> </body> </html>
五：渐变
<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title></title> <style> *{margin:0px;padding:0px;} .wrap{width:500px;height:200px;margin:100px auto;} .wrap .con{width:400px;height:60px;background:-webkit-linear-gradient(left,purple 0px,purple 5px,#ccc 5px)} </style> </head> <body> <div class="wrap"> <div class="con"></div> </div> </body> </html>
原文：http://www.cnblogs.com/yang0901/p/6772354.html