大纲不会出现在引导程序4的btn组按钮中

btn-group 上课。

JSFiddle DEMO

<button class="btn btn-primary">Button without outline</button>
<hr />
<div class="btn-group btn-group-toggle d-flex" data-toggle="buttons">
              <label class="btn btn-primary w-100 active">
                <input type="radio" name="options" id="option1" autocomplete="off"> Button with outline
              </label>
              <label class="btn btn-primary w-100">
                <input type="radio" name="options" id="option2" autocomplete="off"> Button with outline
              </label>
            </div>

CSS:

body {
  margin: 1rem;
}
[class*="btn-"]:focus {
  -webkit-box-shadow: none;
          box-shadow: none
}