与TS溶液反应

  const btnRef = useRef<HTMLButtonElement | null>(null);
  const handleOnMouseUp = () => {
    btnRef.current?.blur();
  };
  
  <button
    ref={btnRef}
    onClick={handleOnClick}
    onMouseUp={handleOnMouseUp}
  >
    <span className="icon-plus"></span> Add Page
  </button>

I found the same situation using a submit button in a form using a bootstrap (v4.4.1) class. The problem arose as I was building a single-page user interface using JavaScript to manipulate all the required changes to the DOM. The form data was submitted to the server via 'fetch' using a JSON string rather than a HTTP POST request. Note that usually the form's default behaviour is to reload the document, and normally this would refresh the button, however the form's default behaviour was prevented by using e.preventDefault() in the listener function for the form's submit event (it is a single-page UI so the document is never reloaded and traffic to the server is minimised to data only). Given the document was not reloaded the button appeared to stay depressed until the user clicked elsewhere in the window. This is what I had (with the problem):

<输入类型=“submit”类=“btn btn-primary”>

这是我用来解决按钮一直按下的问题:

<input type=“submit” class=“btn btn-primary” onmouseup=“this.blur（）”>

在CSS中添加这个:

*, ::after, ::before {
    box-sizing: border-box;
    outline: none !important;
    border: none !important;
    -webkit-box-shadow: none !important;
    box-shadow: none !important;
}

我找到了解决办法。 当我们聚焦时，bootstrap使用box-shadow，所以我们只是禁用它(声誉不够，无法上传图像:)。

我添加

.btn:focus{
    box-shadow:none !important;
}

它的工作原理。

尝试这个解决方案删除按钮周围的边界。将此代码添加到css中。

Try

button:focus{
outline:0px;
}

如果不工作，然后使用下面。

button:focus{
 outline:none !important;
 }

对于sass用户，引导4应该通过重写变量来操作。

如果你想禁用按钮周围焦点上的框影:

$btn-focus-box-shadow: none;

你也可以禁用输入周围焦点上的框影:

$input-focus-box-shadow: none;

或者两者都有一个变量:

$input-btn-focus-box-shadow: none;