回答編集履歴
1
type属性追加
answer
CHANGED
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@@ -1,6 +1,6 @@
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1
1
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```HTML
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2
2
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<input type="range" step="10" />
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3
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-
<button id="random">random</button>
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3
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+
<button id="random" type="button">random</button>
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4
4
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```
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5
5
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6
6
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```JavaScript
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