标签的箭头排列
2022-03-16 本文已影响0人
心存美好
标签的箭头排列
<!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>
<style>
* {
margin: 0;
padding: 0;
}
#box {
position: relative;
width: 250px;
height: 250px;
border: 1px dashed black;
margin: 50px auto;
}
#box div {
position: absolute;
width: 50px;
height: 50px;
background-color: skyblue;
text-align: center;
font: bold 20px/50px 'Arial';
}
</style>
</head>
<body>
<div id="box">
</div>
<script>
//获取元素
let oBox = document.getElementById('box')
//信号量
let height = 50;
let len = 6;
let middle = parseInt(len / 2)
for (let i = 0; i < len; i++) {//创建div标签
let oDiv = document.createElement('div')
oDiv.innerHTML = i;
let index = i;
if (i >= middle) {
index = len - 1 - i;
console.log(index)
}
oDiv.style.cssText = `left:${index * height}px;top:${i * height}px`;//整体加样式
oBox.appendChild(oDiv)
}
</script>
</body>
</html>
