如何使用bootstrap 3制作漂亮的按钮矩阵？

Question

我有类似的东西:

<link rel="stylesheet" href="//maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">

<div class="container">
  <div class="row">
    <div class="col-sm-6">

      <div class="btn-group">
        <button type="button" class="btn btn-default">Button 1</button>
        <button type="button" class="btn btn-default">Button 2</button>
        <button type="button" class="btn btn-default">Button 3</button>
      </div>

      <div class="btn-group">
        <button type="button" class="btn btn-default">Button 4</button>
        <button type="button" class="btn btn-default">Button 5</button>
        <button type="button" class="btn btn-default">Button 6</button>
      </div>

      <div class="btn-group">
        <button type="button" class="btn btn-default">Button 7</button>
        <button type="button" class="btn btn-default">Button 8</button>
        <button type="button" class="btn btn-default">Button 9</button>
      </div>

    </div>

    <div class="col-sm-6">
    </div>
  </div>
</div>

我想有3x3按钮矩阵.还有一件事,左侧和右侧必须看起来像这个例子(直线):

<link rel="stylesheet" href="//maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">

<div class="container">
  <div class="btn-group-vertical">
    <button type="button" class="btn btn-default">button</button>
    <button type="button" class="btn btn-default">button</button>
    <button type="button" class="btn btn-default">button</button>
  </div>
</div>

我怎么能做到的？也许我需要添加一些引导类或编辑css文件？

Answer 1

一组按钮+几个伪类

1. 在.btn-group课堂上只使用一个街区.

2. 使用伪类应用一组CSS属性:

   • :第一个孩子
   • :最后一个孩子
   • :第n个孩子()
   • :第n-最后一子()

3. 该clear: left;属性强制按钮开始矩阵的新行.这是因为.btn班级float: left;有财产.

4. 以与bootstrap.css文件中描述的类类似的方式设置border-radius和margin属性.btn-group

3×3矩阵

请检查结果:

@import url('https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css');

/* The heart of the matter */
.btn-matrix > .btn:nth-child(3n+4) {
  clear: left;
  margin-left: 0;
}
.btn-matrix > .btn:nth-child(n+4) {
  margin-top: -1px;
}
.btn-matrix > .btn:first-child {
  border-bottom-left-radius: 0;
}
.btn-matrix > .btn:nth-child(3) {
  border-top-right-radius: 4px !important;
}
.btn-matrix > .btn:nth-last-child(3) {
  border-bottom-left-radius: 4px !important;
}
.btn-matrix > .btn:last-child {
  border-top-right-radius: 0;
}

/* Decorations */
.btn-matrix {
  margin: 20px;
}

<div class="btn-group btn-matrix">
  <button type="button" class="btn btn-default">Button 1</button>
  <button type="button" class="btn btn-default">Button 2</button>
  <button type="button" class="btn btn-default">Button 3</button>
  <button type="button" class="btn btn-default">Button 4</button>
  <button type="button" class="btn btn-default">Button 5</button>
  <button type="button" class="btn btn-default">Button 6</button>
  <button type="button" class="btn btn-default">Button 7</button>
  <button type="button" class="btn btn-default">Button 8</button>
  <button type="button" class="btn btn-default">Button 9</button>
</div>

X×Y矩阵

代码仅依赖于X:

.btn-matrix > .btn:nth-child(Xn+X+1) {
  clear: left;
  margin-left: 0;
}
.btn-matrix > .btn:nth-child(n+X+1) {
  margin-top: -1px;
}
.btn-matrix > .btn:first-child {
  border-bottom-left-radius: 0;
}
.btn-matrix > .btn:nth-child(X) {
  border-top-right-radius: 4px !important;
}
.btn-matrix > .btn:nth-last-child(X) {
  border-bottom-left-radius: 4px !important;
}
.btn-matrix > .btn:last-child {
  border-top-right-radius: 0;
}