Ptt 大爆卦 | Option disabled CSS - 前往 https://www.w3docs.com/snippets/css/how-to-create-a-placeholder-for-an-html5-select-box-by-using-only-html-and-css.html

你即將離開本站

並前往https://www.w3docs.com/snippets/css/how-to-create-a-placeholder-for-an-html5-select-box-by-using-only-html-and-css.html

How to Create a Placeholder for an HTML5

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