CSS动画之弹出信封
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>Document</title>
<link rel="stylesheet" href="style.css" />
</head>
<!--页面结构-->
<body>
<div class="letter-image">
<div class="animated-mail">
<div class="back-fold"></div>
<div class="letter">
<div class="letter-border"></div>
<div class="letter-title"></div>
<div class="letter-context"></div>
<div class="letter-stamp">
<div class="letter-stamp-inner"></div>
</div>
</div>
<div class="top-fold"></div>
<div class="body"></div>
<div class="left-fold"></div>
</div>
<div class="shadow"></div>
</div>
</body>
</html>
!-------CSS-------style.css-----
body {
background: #323641;
}
.letter-image {
position: absolute;
top: 50%;
left: 50%;
width: 200px;
height: 200px;
transform: translate(-50%, -50%);
cursor: pointer;
}
.animated-mail {
position: absolute;
height: 150px;
width: 200px;
transition: 0.4s;
}
/* 信封部分 一 */
.animated-mail .body {
position: absolute;
bottom: 0;
width: 0;
height: 0;
border-style: solid;
border-width: 0 0 100px 200px;
border-color: transparent transparent #e95f55 transparent;
z-index: 2;
}
.animated-mail .top-fold {
position: absolute;
top: 50px;
width: 0;
height: 0;
border-style: solid;
border-width: 50px 100px 0 100px;
transform-origin: 50% 0%;
transition: transform 0.4s 0.4s, z-index 0.2s 0.4s;
border-color: #cf4a43 transparent transparent transparent;
z-index: 2;
}
/* 信封部分 二 */
.animated-mail .back-fold {
position: absolute;
bottom: 0;
width: 200px;
height: 100px;
background: #cf4a43;
z-index: 0;
}
.animated-mail .left-fold {
position: absolute;
bottom: 0;
width: 0;
height: 0;
border-style: solid;
border-width: 50px 0 50px 100px;
border-color: transparent transparent transparent #e15349;
z-index: 2;
}
/* 信纸部分 */
.animated-mail .letter {
left: 20px;
bottom: 0px;
position: absolute;
width: 160px;
height: 60px;
background: white;
z-index: 1;
overflow: hidden;
transition: 0.4s 0.2s;
}
.animated-mail .letter .letter-border {
height: 10px;
width: 100%;
background: repeating-linear-gradient(
-45deg,
#cb5a5e,
#cb5a5e 8px,
transparent 8px,
transparent 18px
);
}
/*信纸部分 二*/
.animated-mail .letter .letter-title {
margin-top: 10px;
margin-left: 5px;
height: 10px;
width: 40%;
background: #cb5a5e;
}
.animated-mail .letter .letter-context {
margin-top: 10px;
margin-left: 5px;
height: 10px;
width: 20%;
background: #cb5a5e;
}
.animated-mail .letter .letter-stamp {
margin-top: 30px;
margin-left: 120px;
border-radius: 100%;
height: 30px;
width: 30px;
background: #cb5a5e;
opacity: 0.3;
}
/*信封阴影*/
.shadow {
position: absolute;
top: 200px;
left: 50%;
width: 400px;
height: 30px;
transition: 0.4s;
transform: translateX(-50%);
border-radius: 100%;
background: radial-gradient(
rgba(0, 0, 0, 0.5),
rgba(0, 0, 0, 0),
rgba(0, 0, 0, 0)
);
}
/*hover 动态效果 */
.letter-image:hover .animated-mail {
transform: translateY(50px);
}
.letter-image:hover .animated-mail .top-fold {
transition: transform 0.4s, z-index 0.2s;
transform: rotateX(180deg);
z-index: 0;
}
.letter-image:hover .animated-mail .letter {
height: 180px;
}
.letter-image:hover .shadow {
width: 250px;
}
