请老师检查一下
来源：3-7 自由编程
xiao白做大事
2021-03-18 17:45:10
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<link rel="stylesheet" href="css/base.css">
<link rel="stylesheet" href="css/index.css">
<script src="js/flexible.js" type="module"></script>
<title>Document</title>
</head>
<body>
<nav class="nav-container">
<ul class="nav">
<li class="nav-item">
<a href="" class="nav-link">
<img src="img/1.jpg" alt="" class="nav-img">
</a>
</li>
<li class="nav-item">
<a href="" class="nav-link">
<img src="img/2.jpg" alt="" class="nav-img">
</a>
</li>
<li class="nav-item">
<a href="" class="nav-link">
<img src="img/3.jpg" alt="" class="nav-img">
</a>
</li>
<li class="nav-item">
<a href="" class="nav-link">
<img src="img/4.jpg" alt="" class="nav-img">
</a>
</li>
</ul>
</nav>
</body>
</html>
index.css
.nav {
display: flex;
justify-content: space-between;
flex-wrap: wrap;
padding: 0 1.5rem;
background-color: #eee;
}
.nav-item {
width: 50%;
}
.js
'use strict';
var docEl = document.documentElement,
viewportEl = document.querySelector('meta[name="viewport"]'),
dpr = window.devicePixelRatio || 1,
maxWidth = 540,
minWidth = 320;
dpr = dpr >= 3 ? 3 : (dpr >= 2 ? 2 : 1);
docEl.setAttribute('data-dpr', dpr);
docEl.setAttribute('max-width', maxWidth);
docEl.setAttribute('min-width', minWidth);
var scale = 1 / dpr,
content = `width=device-width, initial-scale=${scale}, maximum-scale=${scale},minimum-scale=${scale}, user-scalable=no`;
if (viewportEl) {
viewportEl.setAttribute('content', content);
} else {
viewportEl = document.createElement('meta');
viewportEl.setAttribute('name', 'viewport');
viewportEl.setAttribute('content', content);
document.head.appendChild(viewportEl);
}
setRemUnit();
window.addEventListener('resize', setRemUnit);
function setRemUnit() {
var ratio = 18.75;
var viewWidth = docEl.getBoundingClientRect().width || window.innerWidth;
if (maxWidth && (viewWidth / dpr > maxWidth)) {
viewWidth = maxWidth * dpr;
} else if (minWidth && (viewWidth / dpr < minWidth)) {
viewWidth = minWidth * dpr;
}
docEl.style.fontSize = viewWidth / ratio + 'px';
}
1回答
-
同学你好，代码实现效果很棒。继续加油，祝学习愉快！
0
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