如何删除的背景
我有一个
I am having a <tooltip>. Inside that, I am having a <button>. But this shows a background around button. How to remove it? I want just the button to appear as if it is just a standalone button floating.
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-moz-appearanceCSS 属性来禁用此行为。设置背景也不会造成损害，其他主题可能会定义它：The
<tooltip>element doesn't have a predefined background, at least not in the default Windows theme. Instead it seems to use the default background defined by the operating system. You can disable this behavior by changing-moz-appearanceCSS property. Setting background as well won't harm, other themes might defined it:使用 CSS 使工具提示的背景透明。
Use CSS to make tooltip's background transparent.