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HTML 修改 textarea 的焦点激活后的边框样式

Apr 24, 20232 min read

可以使用 CSS 中的 :focus 伪类来修改 textarea 的焦点激活后的边框样式。

例如:

textarea:focus {
  border: 2px solid blue;
  outline: none;
}

这样,在用户点击 textarea 并激活焦点时,边框将变为蓝色实线,并且取消默认的轮廓边框。您可以更改 border 属性的值来设置边框颜色、样式和宽度。

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