如何在 Bootstrap 中更改手风琴选项卡的背景颜色？

Question

我正在尝试更改手风琴上选项卡的背景颜色。 当我在 CSS 中更改背景颜色时，它只会更改文本背后的颜色，而不是整个内容。

这是我的一段代码：

<div class="panel-group" id="accordion">
    <div class="panel panel-default">
        <div class="panel-heading">
        <h4 class="panel-title">
            <a data-toggle="collapse" data-parent="#accordion" href="#collapseOne">
      Collapsible Group Item #1
            </a>
        </h4>
        </div>
        <div id="collapseOne" class="panel-collapse collapse in">
        <div class="panel-body">
            Anim pariatur cliche reprehenderit, enim eiusmod high life accusamus terry richardson ad squid. 3 wolf moon officia aute, non cupidatat skateboard dolor brunch. Food truck quinoa nesciunt laborum eiusmod. Brunch 3 wolf moon tempor, sunt aliqua put a bird on it squid single-origin coffee nulla assumenda shoreditch et. Nihil anim keffiyeh helvetica, craft beer labore wes anderson cred nesciunt sapiente ea proident. Ad vegan excepteur butcher vice lomo. Leggings occaecat craft beer farm-to-table, raw denim aesthetic synth nesciunt you probably haven't heard of them accusamus labore sustainable VHS.
    </div>
    </div>
</div>

Answer 1

如果仅更改文本的背景，您可能正在更改锚标记的background-color ，而是使用以下 CSS 选择器更改panel-heading的background-color ：

.panel-default > .panel-heading {
    background-color:#000;
}

Answer 2

您可能需要为面板创建自己的自定义上下文状态类。 Bootstrap 内置了一堆，但是如果您想要完全不同的东西，则需要添加一个。 例如，这将为名为 flashy 的面板创建一个新的上下文状态类：

.panel-flashy {
    border-color: #FF934F;
  }
.panel-flashy > .panel-heading {
     color:#fff;
     background-color:#FF934F;
     border-color:#ff934f;
}

HTML代码：

     <div class="panel panel-flashy">
        <div class="panel-heading">
           <h3 class="panel-title">Flashy Panel title</h3>
        </div>
        <div class="panel-body">
           Panel content goes here
        </div>
     </div>

Bootply 示例。

Answer 3

Bootstrap 具有内置样式：

更改<div class="panel panel-default">

到<div class="panel panel-primary">

所有其他 Bootstrap 颜色都适用，因此panel-success panel-warning等请参见此处： Bootstrap Contextual colours

任何其他颜色都需要您编写一个类来补充引导类，例如

.panel-turquoise {
    border-color: #32c5d2;
}
.panel-turquoise > .panel-heading + .panel-collapse > .panel-body {
    border-top-color: #32c5d2;
}

.panel-turquoise > .panel-heading {
    background-color: #eff3ff;
}

<div class="panel panel-turquoise">

Answer 4

bg-默认

<div class="panel-group" id="accordion">
<div class="panel bg-default">
    <div class="panel-heading">
    <h4 class="panel-title">
        <a data-toggle="collapse" data-parent="#accordion" href="#collapseOne">
  Collapsible Group Item #1
        </a>
    </h4>
    </div>
    <div id="collapseOne" class="panel-collapse collapse in">
    <div class="panel-body">
        Anim pariatur cliche reprehenderit, enim eiusmod high life accusamus terry richardson ad squid. 3 wolf moon officia aute, non cupidatat skateboard dolor brunch. Food truck quinoa nesciunt laborum eiusmod. Brunch 3 wolf moon tempor, sunt aliqua put a bird on it squid single-origin coffee nulla assumenda shoreditch et. Nihil anim keffiyeh helvetica, craft beer labore wes anderson cred nesciunt sapiente ea proident. Ad vegan excepteur butcher vice lomo. Leggings occaecat craft beer farm-to-table, raw denim aesthetic synth nesciunt you probably haven't heard of them accusamus labore sustainable VHS.
</div>
</div>