相关效果
代码展示
index.html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Flex Panels ??</title>
<link href=‘https://fonts.googleapis.com/css?family=Amatic+SC‘ rel=‘stylesheet‘ type=‘text/css‘>
</head>
<body>
<style>
html {
box-sizing: border-box;
background: #ffc600;
font-family: ‘helvetica neue‘;
font-size: 20px;
font-weight: 200;
}
body {
margin: 0;
}
*,
*:before,
*:after {
box-sizing: inherit;
}
.panels {
display: flex;
min-height: 100vh;
overflow: hidden;
}
.panel {
display: flex;
flex-direction: column;
flex: 1;
justify-content: center;
align-items: center;
background: #6B0F9C;
box-shadow: inset 0 0 0 5px rgba(255, 255, 255, 0.1);
color: white;
text-align: center;
/* Safari transitionend event.propertyName === flex */
/* Chrome + FF transitionend event.propertyName === flex-grow */
transition:
font-size 0.7s cubic-bezier(0.61, -0.19, 0.7, -0.11),
flex 0.7s cubic-bezier(0.61, -0.19, 0.7, -0.11),
background 0.2s;
font-size: 20px;
background-size: cover;
background-position: center;
}
.panel1 {
background: url(img/haiou.jpg);
}
.panel2 {
background: url(img/d.jpg);
}
.panel3 {
background: url(img/stars.jpg);
}
.panel4 {
background: url(img/e.jpg);
}
.panel5 {
background: url(img/f.jpg);
}
/* Flex Children */
.panel>* {
display: flex;
flex: 1 0 auto;
justify-content: center;
align-items: center;
width: 100%;
margin: 0;
transition: transform 0.5s;
}
.panel>*:first-child {
transform: translateY(-100%);
}
.panel>*:last-child {
transform: translateY(100%);
}
.panel.open-active>*:first-child {
transform: translateY(0);
}
.panel.open-active>*:last-child {
transform: translateY(0);
}
.panel p {
text-transform: uppercase;
font-family: ‘Amatic SC‘, cursive;
text-shadow: 0 0 4px rgba(0, 0, 0, 0.72), 0 0 14px rgba(0, 0, 0, 0.45);
font-size: 2em;
}
.panel p:nth-child(2) {
font-size: 4em;
}
.panel.open {
flex: 5;
font-size: 40px;
}
</style>
<div class="panels">
<div class="panel panel1">
<p>Hey</p>
<p>Let‘s</p>
<p>Dance</p>
</div>
<div class="panel panel2">
<p>Give</p>
<p>Take</p>
<p>Receive</p>
</div>
<div class="panel panel3">
<p>Experience</p>
<p>It</p>
<p>Today</p>
</div>
<div class="panel panel4">
<p>Give</p>
<p>All</p>
<p>You can</p>
</div>
<div class="panel panel5">
<p>Life</p>
<p>In</p>
<p>Motion</p>
</div>
</div>
<script>
; (function () {
let panels = document.querySelectorAll(‘.panel‘);
function clickHandler() {
this.classList.toggle(‘open‘); // 无 open 则 add，有 open 则 remove
}
function transitionHandler(e) {
console.log(e.propertyName);
if (e.propertyName.indexOf(‘flex‘) !== -1)
this.classList.toggle(‘open-active‘);
}
panels.forEach((panel) => {
panel.addEventListener(‘click‘, clickHandler);
panel.addEventListener(‘transitionend‘, transitionHandler);
})
})()
</script>
</body>
</html>