ractive+css实现表单美化提交发送邮件信封动画效果代码-html代码-BFW代码库

代码语言：html

代码描述：ractive+css实现表单美化提交发送邮件信封动画效果代码

下面为部分代码预览，完整代码请点击下载或在bfwstudio webide中打开

<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <style>
        body {
	background:linear-gradient(45deg,#bb1881,#f88b50);
	font-family:sans-serif
}
.contact-wrapper {
	position:absolute;
	top:50%;
	transform:translateY(-50%);
	width:100%
}
.flip-card {
	border-radius:.5em;
	position:fixed;
	top:1em;
	left:1em;
	width:5em;
	padding:.5em;
	border:.1em solid #fff;
	color:#fff;
	text-align:center;
	cursor:pointer;
	z-index:9
}
.envelope {
	position:relative;
	display:block;
	width:30em;
	height:35em;
	margin:0 auto
}
.envelope.active .content {
	padding:15em 2em 2em
}
.envelope.active .paper.front,.envelope.active .paper.back {
	animation-duration:1.5s;
	animation-direction:normal;
	animation-timing-function:ease-in-out;
	animation-fill-mode:forwards
}
.envelope.active .paper.front {
	animation-name:envelope-front
}
.envelope.active .paper.back {
	animation-name:envelope-back
}
.envelope.active .paper.back:before {
	animation-duration:.5s;
	animation-direction:normal;
	animation-timing-function:ease-in-out;
	animation-fill-mode:forwards;
	animation-delay:1.25s;
	animation-name:envelope-back-before
}
.envelope.active .bottom-wrapper {
	transform:rotateX(180deg)
}
.envelope.active .bottom-wrapper:after {
	z-index:0;
	opacity:1
}
.envelope .content {
	padding:2em;
	box-sizing:border-box;
	position:relative;
	z-index:9;
	transition:all .5s ease-in-out;
	transition-delay:1s
}
.envelope .top-wrapper,.envelope .bottom-wrapper {
	box-sizing:border-box;
	background:#03a9f5;
	color:#fff
}
.envelope .top-wrapper {
	padding:2em 2em 0;
	border-top-left-radius:.5em;
	border-top-right-radius:.5em
}
.envelope .bottom-wrapper {
	padding:0 2em 2em;
	border-bottom-left-radius:.5em;
	border-bottom-right-radius:.5em;
	transition:all .5s ease-in-out;
	transform-origin:top;
	transform-style:preserve-3d;
	position:relative;
	overflow:hidden;
	margin-top:-1px
}
.envelope .bottom-wrapper:after {
	position:absolute;
	content:'';
	display:block;
	opacity:0;
	background:#03a9f5;
	top:0;
	left:0;
	width:100%;
	height:100%;
	z-index:-1
}
.envelope form label {
	display:block;
	padding-bottom:.5em
}
.envelope form input,.envelope form textarea {
	width:100%;
	box-shadow:0;
	background:transparent;
	color:#fff
}
.envelope form input {
	border-width:0 0 .1em;
	border-color:#fff;
	border-style:solid
}
.envelope form textarea {
	border:.1em solid #fff;
	border-radius:.25em
}
.envelope form .submit-card {
	background:#fff;
	color:#222;
	text-align:center;
	padding:.5em;
	box-sizing:border-box;
	background:#fff;
	width:100%;
	border:0;
	box-shadow:none;
	border-radius:.25em;
	cursor:pointer
}
.envelope form .input {
	padding-bottom:1em
}
.envelope .paper {
	position:absolute;
	display:block;
	top:0;
	left:0;
	border-bottom-left-radius:.5em;
	border-bottom-right-radius:.5em;
	overflow:hidden
}
.envelope .paper.back {
	top:0
}
.envelope .paper.back:before {
	content:'';
	display:block;
	width:0;
	height:0;
	margin-bottom:-1px;
	border-style:solid;
	border-width:0 15em 10em 15em;
	border-color:transparent transparent #d3d3d3 transparent;
	transform-origin:bottom;
	transform-style:preserve-3d;
	z-index:0
}
.envelope .paper.back:after {
	content:'';
	display:block;
	background-color:#d3d3d3;
	width:30em;
	height:20em
}
.envelope .paper.front {
	top:10em;
	box-shadow:.1em .5em .5em rgba(0,0,0,0.25);
	z-index:0
}
.envelope .paper.front:before {
	content:'';
	display:block;
	width:0;
	height:0;
	border-style:solid;
	border-width:10em 15em 0 15em;
	border-color:transparent #fff
}
.envelope .paper.front:after {
	content:'';
	display:block;
	width:30em;
	height:10em;
	background:#fff;
	margin-top:-1px
}
@-moz-keyframes envelope-front {
	0{top:10em;
	z-in.........完整代码请登录后点击上方下载按钮下载查看