CSS3过渡特性创建信封效果的联系表单_html/css_WEB-ITnose

效果演示 插件下载

CSS3 代码：

	#form_wrap { overflow:hidden; height:446px; position:relative; top:0px;	-webkit-transition: all 1s ease-in-out .3s;	-moz-transition: all 1s ease-in-out .3s;	-o-transition: all 1s ease-in-out .3s;	transition: all 1s ease-in-out .3s;}	#form_wrap:before {content:"";	position:absolute;	bottom:128px;left:0px;	background:url('images/before.png');	width:530px;height: 316px;}	#form_wrap:after {content:"";position:absolute;	bottom:0px;left:0;	background:url('images/after.png');	width:530px;height: 260px; }	#form_wrap.hide:after, #form_wrap.hide:before {display:none; }	#form_wrap:hover {height:776px;top:-200px;}	form {background:#f7f2ec url('images/letter_bg.png'); 	position:relative;top:200px;overflow:hidden;	height:200px;width:400px;margin:0px auto;padding:20px; 	border: 1px solid #fff;	border-radius: 3px; 	-moz-border-radius: 3px; -webkit-border-radius: 3px;	box-shadow: 0px 0px 3px #9d9d9d, inset 0px 0px 27px #fff;	-moz-box-shadow: 0px 0px 3px #9d9d9d, inset 0px 0px 14px #fff;	-webkit-box-shadow: 0px 0px 3px #9d9d9d, inset 0px 0px 27px #fff;	-webkit-transition: all 1s ease-in-out .3s;	-moz-transition: all 1s ease-in-out .3s;	-o-transition: all 1s ease-in-out .3s;	transition: all 1s ease-in-out .3s;}	#form_wrap:hover form {height:530px;}	label {	margin: 11px 20px 0 0; 	font-size: 16px; color: #b3aba1;	text-transform: uppercase; 	text-shadow: 0px 1px 0px #fff;	}	input[type=text], textarea {	font: 14px normal normal uppercase helvetica, arial, serif;	color: #7c7873;background:none;	width: 380px; height: 36px; padding: 0px 10px; margin: 0 0 10px 0;	border:1px solid #f8f5f1;	-moz-border-radius: 5px; -webkit-border-radius: 5px; border-radius: 5px;	-moz-box-shadow: inset 0px 0px 1px #726959;	-webkit-box-shadow: inset 0px 0px 1px #b3a895; 	box-shadow: inset 0px 0px 1px #b3a895;	}	textarea { height: 80px; padding-top:14px;}	textarea:focus, input[type=text]:focus {background:rgba(255,255,255,.35);}	#form_wrap input[type=submit] {	position:relative;font-family: 'YanoneKaffeesatzRegular'; 	font-size:24px; color: #7c7873;text-shadow:0 1px 0 #fff;	width:100%; text-align:center;opacity:0;	background:none;	cursor: pointer;	-moz-border-radius: 3px; -webkit-border-radius: 3px; border-radius: 3px; 	-webkit-transition: opacity .6s ease-in-out 0s;	-moz-transition: opacity .6s ease-in-out 0s;	-o-transition: opacity .6s ease-in-out 0s;	transition: opacity .6s ease-in-out 0s;	}	#form_wrap:hover input[type=submit] {z-index:1;opacity:1;	-webkit-transition: opacity .5s ease-in-out 1.3s;	-moz-transition: opacity .5s ease-in-out 1.3s;	-o-transition: opacity .5s ease-in-out 1.3s;	transition: opacity .5s ease-in-out 1.3s;}	#form_wrap:hover input:hover[type=submit] {color:#435c70;}