这里实现圆角表单，圆角输入框，无刷新验证，漂亮唯美，是对这款基于HTML5/CSS3/jQuery来实现的表单效果的简要概括，用HTML5可以实现很多超乎寻常的效果，从此你会喜欢上HTML5,会骂一下万恶的IE,到现在IE8还不支持HTML5，正悲哀着呢。
先来看看运行效果截图：
在线演示地址如下：
具体代码如下：
<!DOCTYPE html> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>html5+css3+jQuery圆角注册表单效果</title> <script type="text/javascript" src="https://www.jb51.net/jquery-1.6.2.min.js"></script> <script type="text/javascript"> $(document).ready(function() { (function($) { $.InFieldLabels = function(label, field, options) { var base = this; base.$label = $(label); base.$field = $(field); base.$label.data("InFieldLabels", base); base.showing = true; base.init = function() { base.options = $.extend({}, $.InFieldLabels.defaultOptions, options); base.$label.css('position', 'absolute'); var fieldPosition = base.$field.position(); base.$label.css({ 'left': fieldPosition.left, 'top': fieldPosition.top }).addClass(base.options.labelClass); if (base.$field.val() != "") { base.$label.hide(); base.showing = false; }; base.$field.focus(function() { base.fadeOnFocus(); }).blur(function() { base.checkForEmpty(true); }).bind('keydown.infieldlabel', function(e) { base.hideOnChange(e); }).change(function(e) { base.checkForEmpty(); }).bind('onPropertyChange', function() { base.checkForEmpty(); }); }; base.fadeOnFocus = function() { if (base.showing) { base.setOpacity(base.options.fadeOpacity); }; }; base.setOpacity = function(opacity) { base.$label.stop().animate({ opacity: opacity }, base.options.fadeDuration); base.showing = (opacity > 0.0); }; base.checkForEmpty = function(blur) { if (base.$field.val() == "") { base.prepForShow(); base.setOpacity(blur ? 1.0 : base.options.fadeOpacity); } else { base.setOpacity(0.0); }; }; base.prepForShow = function(e) { if (!base.showing) { base.$label.css({ opacity: 0.0 }).show(); base.$field.bind('keydown.infieldlabel', function(e) { base.hideOnChange(e); }); }; }; base.hideOnChange = function(e) { if ((e.keyCode == 16) || (e.keyCode == 9)) return; if (base.showing) { base.$label.hide(); base.showing = false; }; base.$field.unbind('keydown.infieldlabel'); }; base.init(); }; $.InFieldLabels.defaultOptions = { fadeOpacity: 0.5, fadeDuration: 300, labelClass: 'infield' }; $.fn.inFieldLabels = function(options) { return this.each(function() { var for_attr = $(this).attr('for'); if (!for_attr) return; var $field = $("input#" + for_attr + "[type='text']," + "input#" + for_attr + "[type='password']," + "input#" + for_attr + "[type='tel']," + "input#" + for_attr + "[type='email']," + "textarea#" + for_attr); if ($field.length == 0) return; (new $.InFieldLabels(this, $field[0], options)); }); }; })(jQuery); $("#RegisterUserForm label").inFieldLabels(); }); </script> <style type="text/css"> html, body, h1, form, fieldset, input{margin: 0;padding: 0;border: none;} body{font-family: Helvetica, Arial, sans-serif;font-size: 12px;} #registration{color: #fff;background: #2d2d2d;background: -webkit-gradient( linear, left bottom, left top, color-stop(0, rgb(60,60,60)), color-stop(0.74, rgb(43,43,43)), color-stop(1, rgb(60,60,60)) );background: -moz-linear-gradient( center bottom, rgb(60,60,60) 0%, rgb(43,43,43) 74%, rgb(60,60,60) 100% );-moz-border-radius: 10px;-webkit-border-radius: 10px;border-radius: 10px;margin: 10px;width: 430px;} #registration a{color: #8c910b;text-shadow: 0px -1px 0px #000;} #registration fieldset{padding: 20px;} input.text{-webkit-border-radius: 15px;-moz-border-radius: 15px;border-radius: 15px;border: solid 1px #444;font-size: 14px;width: 90%;padding: 7px 8px 7px 30px;-moz-box-shadow: 0px 1px 0px #777;-webkit-box-shadow: 0px 1px 0px #777;background: #ddd url('img/inputSprite.png') no-repeat 4px 5px;background: url('images/inputSprite.png') no-repeat 4px 5px, -moz-linear-gradient( center bottom, rgb(225,225,225) 0%, rgb(215,215,215) 54%, rgb(173,173,173) 100% );background: url('images/inputSprite.png') no-repeat 4px 5px, -webkit-gradient( linear, left bottom, left top, color-stop(0, rgb(225,225,225)), color-stop(0.54, rgb(215,215,215)), color-stop(1, rgb(173,173,173)) );color: #333;text-shadow: 0px 1px 0px #FFF;} input#email{background-position: 4px 5px;background-position: 4px 5px, 0px 0px;} input#password{background-position: 4px -20px;background-position: 4px -20px, 0px 0px;} input#name{background-position: 4px -46px;background-position: 4px -46px, 0px 0px;} input#tel{background-position: 4px -76px;background-position: 4px -76px, 0px 0px;} #registration h2{color: #fff;text-shadow: 0px -1px 0px #000;border-bottom: solid #181818 1px;-moz-box-shadow: 0px 1px 0px #3a3a3a;text-align: center;padding: 18px;margin: 0px;font-weight: normal;font-size: 24px;font-family: Lucida Grande, Helvetica, Arial, sans-serif;} #registerNew{width: 203px;height: 40px;border: none;text-indent: -9999px;background: url('images/createAccountButton.png') no-repeat;cursor: pointer;float: right;} #registerNew: hover{background-position: 0px -41px;} #registerNew: active{background-position: 0px -82px;} #registration p{position: relative;} fieldset label.infield{color: #333;text-shadow: 0px 1px 0px #fff;position: absolute;text-align: left;top: 3px !important;left: 35px !important;line-height: 29px;} </style> </head> <body> <div> <h2>Create an Account</h2> <form action="" method="post"> <fieldset> <p> <label for="name">Name</label> <input type="text" value="" /> </p> <p> <label for="tel">Phone Number</label> <input type="tel" value="" /> </p> <p> <label for="email">Email</label> <input type="email" value="" /> </p> <p> <label for="password">Password</label> <input type="password" /> </p> <p><input type="checkbox" /> <label for="acceptTerms"> I agree to the <a href="">Terms and Conditions</a> and <a href="">Privacy Policy</a> </label> </p> <p> <button type="submit">Register</button> </p> </fieldset> </form> </div> </body> </html>