<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8" /> <title>Jay Skript And The Domsters</title> <style type="text/css"> *{border:none;margin:0px;padding:0px;} .number{ padding: 36px 0 28px;width:400px;margin:auto} .mui-numbox{ display: inline-block;} .minus{width: 30px; height: 30px; text-align: center;border: solid 1px #eaeaea; background: #f5f5f5; color: #9e9e9e;} .numbox{border-top: solid 1px #eaeaea; border-bottom: solid 1px #eaeaea; height: 28px; width:60px; color: #333333; margin-left:-8px; text-align: center; background: transparent;} .numbox::textfield-decoration-container { } .numbox::-webkit-inner-spin-button { -webkit-appearance: none; } .numbox::-webkit-outer-spin-button { -webkit-appearance: none; /* 有无看不出差别 */ } .plus { margin-left: -8px;} </style> </head> <body > <div class="number"> 购买数量: <div class="mui-numbox"> <button class="minus" type="button" onclick="opera('val', false);">-</button> <input class="numbox" type="number" id="val" value="0"/> <button class="minus plus" type="button" onclick="opera('val', true);">+</button> 人次 </div> <script type="text/javascript"> function opera(x, y) { var rs = new Number(document.getElementById(x).value); if (y) { document.getElementById(x).value = rs + 1; } else if( rs >0) { document.getElementById(x).value = rs - 1; } } </script> </body> </html>效果预览：
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