我在上面的评论中提到了这一点，但为了清晰起见，有必要把它作为一个单独的答案列出。只要你不需要在按钮上设置焦点，你可以在它应用任何CSS效果之前使用焦点事件删除它:

$('buttonSelector').focus(function(event) {
    event.target.blur();
});

这避免了在使用click事件时可以看到的闪烁。这确实限制了界面，并且您将无法选择按钮，但这在所有应用程序中都不是问题。

对于任何使用react-bootstrap并遇到此问题的人，以下是我所做的工作:

.btn:focus {
    /* the !important is really the key here, it overrides everything else */
    outline: none !important;
    box-shadow: none !important;
}

在添加!之前，事情并没有工作。

对于想要一个纯css方式的人来说:

:focus:not(:focus-visible) { outline: none }

这也可以为链接等工作，和奖金，它保持键盘的可访问性。最后，它被不支持焦点可见的浏览器忽略

  .btn:focus,.btn:active, a{
        outline: none !important;
        box-shadow: none;
     }

这个大纲:没有将工作的按钮和标签

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（）”>

将此添加到脚本中

$(document).ready(function() {
    $('#addBtn').focus(function() {
        this.blur();
    });
});