回答編集履歴
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コード追加
test
CHANGED
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@@ -3,3 +3,71 @@
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[CSS変数をJavaScriptで動的に変更し、複数のスタイルに一括適用する \| Black Everyday Company](https://kuroeveryday.blogspot.com/2018/03/change-css-valiables-by-javascript.html)
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7
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9
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```html
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10
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11
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<input type="button" value="変更" onclick="change()">
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<input type="button" value="test">
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<input type="button" value="test" class="btn_color">
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<input type="button" value="test">
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<input type="button" value="test" class="btn_color">
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<input type="button" value="test">
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<input type="button" value="test" class="btn_color">
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```
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```css
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:root {
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--btn-color1: green;
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--btn-color2: orange;
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}
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input[type="button"].btn_color{
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color: #000;
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background-color: var(--btn-color1);
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}
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input[type="button"] {
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color: #000;
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background-color: var(--btn-color2);
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}
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```
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60
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61
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```js
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62
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function change() {
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const root = document.documentElement;
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root.style.setProperty("--btn-color1","red");
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root.style.setProperty("--btn-color2","blue");
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}
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72
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```
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