我找到了一个解决方案，只需在css代码中添加以下行。

button:focus { outline: none }

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

我们遇到了类似的问题，并注意到Bootstrap 3 . 在他们的标签上没有问题(在Chrome中)。它看起来像他们使用的大纲风格，让浏览器决定什么是最好的，Chrome似乎做了你想要的:显示大纲时，聚焦，除非你只是点击元素。

对大纲样式的支持很难确定，因为浏览器要决定它的含义。最好检查几个浏览器，并有一个回退规则。

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（）”>

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。

如果你想在鼠标下而不是键盘标签上完成轮廓的删除，并且你正在使用VueJS，下面是解决方案:

<button @mousedown="$event.preventDefault()">No Online On Click</button>

这基本上阻止它在点击时接收焦点，但任何其他接收焦点的方式都保持活跃。