40 lines
983 B
HTML
40 lines
983 B
HTML
<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8">
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<meta http-equiv="X-UA-Compatible" content="IE=edge">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<title>Document</title>
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</head>
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<body>
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<button>点我</button>
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<div style="display: block;" class="text">哈哈哈哈</div>
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</body>
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<script>
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// 1 点击显示(block)和隐藏（display: none）元素
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// 思路：
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// 1 给button 绑定 点击事件
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// 2
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// 2 显示的时候随机变化颜色
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// hsla 来实现的
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var button = $("button"), text = $(".text");
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button.onclick = function () {
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if (text.style.display == "block") {
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text.style.display = "none"
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} else {
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text.style.display = "block"
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text.style.color = `hsl(${Math.random() * 360},100%,50%)`
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}
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}
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function $(className) {
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return document.querySelector(className)
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}
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</script>
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</html> |