增加 bootstrap 复选框的大小

Question

我正在使用官方 bootstrap 文档中的代码创建一个简单的复选框：

<div class="custom-control custom-checkbox">
    <input type="checkbox" class="custom-control-input" id="customCheck" name="example1">
    <label class="custom-control-label" for="customCheck">Check this custom checkbox</label>
</div>

我想知道如何使复选框比当前更大？我尝试编辑 customCheck 的 css 并更改高度和宽度属性，但这并没有增加框的大小。

Answer 1

更改 bootstrap 组件尺寸不是一个好主意，您应该更改 bootstrap 中的变量，但这意味着重新编译库。无论如何，我可以通过这种方式完成您想要的：

.custom-control-label::before ,.custom-control-label::after{width:20px; height:20px}

Answer 2

由于您要在 bootstrap 内完成它，所以很容易。首先使用 btn-group-toggle 添加一个 div 容器以使用组中的按钮（如果您愿意的话）。

在标签中添加 p-3 或 p-5 class 以根据您的喜好扩展它

<div class="btn-group-toggle" data-toggle="buttons">
        <label class="btn btn-secondary p-3">
            <input type="checkbox" id="customCheck" name="example1"> Check this custom checkbox
        </label>
    </div>

Answer 3

这是一个使用自定义 css

的工作示例

.custom-checkbox-lg .custom-control-label::before,
.custom-checkbox-lg .custom-control-label::after {
  width: 2rem;
  height: 2rem;
}

.custom-checkbox-lg .custom-control-label {
  margin: .5rem 1rem;
}

<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css" integrity="sha384-Gn5384xqQ1aoWXA+058RXPxPg6fy4IWvTNh0E263XmFcJlSAwiGgFAW/dAiS6JXm" crossorigin="anonymous">

<div class="custom-control custom-checkbox">
  <input type="checkbox" class="custom-control-input" id="customCheck1" name="example1">
  <label class="custom-control-label" for="customCheck1">Check this custom checkbox</label>
</div>

<div class="custom-control custom-checkbox custom-checkbox-lg">
  <input type="checkbox" class="custom-control-input" id="customCheck2" name="example1">
  <label class="custom-control-label" for="customCheck2">Check this custom checkbox</label>
</div>

Answer 4

您可以尝试以下方式：

.custom-control-label::before, 
.custom-control-label::after {
  width: 2.25rem !important;
  height: 2.25rem !important;
  margin: 1rem;
}
.custom-control-label{
  margin: 1.5rem 2rem;
}

<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta.3/css/bootstrap.min.css" integrity="sha384-Zug+QiDoJOrZ5t4lssLdxGhVrurbmBWopoEl+M6BdEfwnCJZtKxi1KgxUyJq13dy" crossorigin="anonymous">


<div class="custom-control custom-checkbox">
  <input type="checkbox" class="custom-control-input" id="customCheck" name="example1">
  <label class="custom-control-label" for="customCheck">Check this custom checkbox</label>
</div>

Answer 5

在 bootstrap 4 中，如果你想改变或增加自定义开关（来自 iOS 的漂亮开关），你应该深入研究 bootstrap 的 css文件并更改 custom-switch 的 class 的尺寸。 html代码如下：

<div class="custom-control custom-checkbox">
 <input type="checkbox" class="custom-control-input" id="switchA" name="switch">
 <label class="custom-control-label" for="switchA">Custom checkbox</label>
</div>

In boostrap.css (version 4.3.1 and not minified) file, you should find the custom-switch class and change the following parameters in the below. You must delete all the comments I added on.

.custom-switch {
  padding-left: 2.25rem;
  padding-bottom: 1rem; // added for positioning
}

.custom-control-label { // added for alignment with the switch
  padding-top: 0.5rem;
  padding-left: 2rem;
  padding-bottom: 0.1rem;
}

.custom-switch .custom-control-label::before {
  left: -2.25rem;
  height: 2rem;
  width: 3.5rem;    // it was 1.75rem before. Sliding way is longer than before.
  pointer-events: all;
  border-radius: 1rem;
}

.custom-switch .custom-control-label::after {
  top: calc(0.25rem + 2px);
  left: calc(-2.25rem + 2px);
  width: calc(2rem - 4px);   // it was calc(1rem - 4px) before. Oval is bigger than before.
  height: calc(2rem - 4px);  // it was calc(1rem - 4px) before. Oval is bigger than before.
  background-color: #adb5bd;
  border-radius: 2rem; //   it was 0.5rem before. Oval is bigger than before.
  transition: background-color 0.15s ease-in-out, border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out, -webkit-transform 0.15s ease-in-out;
  transition: transform 0.15s ease-in-out, background-color 0.15s ease-in-out, border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;
  transition: transform 0.15s ease-in-out, background-color 0.15s ease-in-out, border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out, -webkit-transform 0.15s ease-in-out;
}
@media (prefers-reduced-motion: reduce) {
  .custom-switch .custom-control-label::after {
    transition: none;
  }
}

.custom-switch .custom-control-input:checked ~ .custom-control-label::after {
  background-color: #fff;
  -webkit-transform: translateX(1.5rem); //translateX(0.75rem);
  transform: translateX(1.5rem); //translateX(0.75rem);
}

After copied these code to Bootstrap file, you must delete all comments I put in. Otherwise, It won't increase the size. I hope you enjoy your a bigger pretty switch now.

Answer 6

最好有自己的文件并更改开关尺寸的 css 变量：

@import "bootstrap/scss/_functions.scss";
@import "bootstrap/scss/_variables.scss";

$custom-control-indicator-size: 1.5rem;
$custom-switch-width: $custom-control-indicator-size * 1.75;
$custom-switch-indicator-border-radius: $custom-control-indicator-size / 2;
$custom-switch-indicator-size: subtract(
  $custom-control-indicator-size,
  $custom-control-indicator-border-width * 4
);

@import "bootstrap/scss/bootstrap";

Answer 7

此class .custom-switch-adaptive 将使开关适应文本大小并将标签文本包含在其中。

Demo

P.S。 A similar feature will be added in Bootstrap v5

SCSS

.custom-switch.custom-switch-adaptive {
  padding-left: 0;

  .custom-control-label {
    padding: 0 1.5em;
    position: relative;
    border-radius: 1em;
    line-height: 1.4em;
    color: $text-muted;
    border: 1px solid $text-muted;
    background-color: $light;
    transition: background-color 200ms;

    &::before {
      content: none;
    }
    &::after {
      position: absolute;
      height: 1em;
      top: 0.2em;
      left: 0.2em;
      width: 1em;
      border-radius: 1em;

      transition: left 200ms;
    }
  }


  .custom-control-input:checked ~ .custom-control-label {
    color: $white;
    background-color: $success;
    border-color: $success;

    &::after {
      background-color: $white;
      left: calc(100% - 1.2em);

      transform: none;
      -webkit-transform: none;
    }
  }
}

HTML

<div class="form-group h1">
  <div class="custom-control custom-switch custom-switch-adaptive">
    <input id="test4" type="checkbox" class="custom-control-input">
    <label for="test4" class="custom-control-label">h1 text size</label>
  </div>
</div>

Answer 8

我为 bootstrap 开关添加了类，例如 *-sm, *-md, *-lg, *-xl。

这里我用一个@mixin 所有分辨率切换（@mixin 与 JS 函数非常相似，但它没有 return 任何东西）。

对于Bootstrap 4

custom-switch-sm, custom-switch-md, custom-switch-lg, custom-switch-xl

SCSS: https://codepen.io/nisharg/pen/VwLbYvv

CSS: https://codepen.io/nisharg/pen/mdJmywW

实时片段 (CSS)

/* for sm */

.custom-switch.custom-switch-sm .custom-control-label {
    padding-left: 1rem;
    padding-bottom: 1rem;
}

.custom-switch.custom-switch-sm .custom-control-label::before {
    height: 1rem;
    width: calc(1rem + 0.75rem);
    border-radius: 2rem;
}

.custom-switch.custom-switch-sm .custom-control-label::after {
    width: calc(1rem - 4px);
    height: calc(1rem - 4px);
    border-radius: calc(1rem - (1rem / 2));
}

.custom-switch.custom-switch-sm .custom-control-input:checked ~ .custom-control-label::after {
    transform: translateX(calc(1rem - 0.25rem));
}

/* for md */

.custom-switch.custom-switch-md .custom-control-label {
    padding-left: 2rem;
    padding-bottom: 1.5rem;
}

.custom-switch.custom-switch-md .custom-control-label::before {
    height: 1.5rem;
    width: calc(2rem + 0.75rem);
    border-radius: 3rem;
}

.custom-switch.custom-switch-md .custom-control-label::after {
    width: calc(1.5rem - 4px);
    height: calc(1.5rem - 4px);
    border-radius: calc(2rem - (1.5rem / 2));
}

.custom-switch.custom-switch-md .custom-control-input:checked ~ .custom-control-label::after {
    transform: translateX(calc(1.5rem - 0.25rem));
}

/* for lg */

.custom-switch.custom-switch-lg .custom-control-label {
    padding-left: 3rem;
    padding-bottom: 2rem;
}

.custom-switch.custom-switch-lg .custom-control-label::before {
    height: 2rem;
    width: calc(3rem + 0.75rem);
    border-radius: 4rem;
}

.custom-switch.custom-switch-lg .custom-control-label::after {
    width: calc(2rem - 4px);
    height: calc(2rem - 4px);
    border-radius: calc(3rem - (2rem / 2));
}

.custom-switch.custom-switch-lg .custom-control-input:checked ~ .custom-control-label::after {
    transform: translateX(calc(2rem - 0.25rem));
}

/* for xl */

.custom-switch.custom-switch-xl .custom-control-label {
    padding-left: 4rem;
    padding-bottom: 2.5rem;
}

.custom-switch.custom-switch-xl .custom-control-label::before {
    height: 2.5rem;
    width: calc(4rem + 0.75rem);
    border-radius: 5rem;
}

.custom-switch.custom-switch-xl .custom-control-label::after {
    width: calc(2.5rem - 4px);
    height: calc(2.5rem - 4px);
    border-radius: calc(4rem - (2.5rem / 2));
}

.custom-switch.custom-switch-xl .custom-control-input:checked ~ .custom-control-label::after {
    transform: translateX(calc(2.5rem - 0.25rem));
}

<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.4.1/css/bootstrap.min.css">


<div class="custom-control custom-switch custom-switch-sm">
  <input type="checkbox" class="custom-control-input" id="customSwitch1">
  <label class="custom-control-label" for="customSwitch1">Default Unchcked Switch</label>
</div>

<div class="custom-control custom-switch custom-switch-sm">
  <input type="checkbox" class="custom-control-input" id="customSwitch2" checked>
  <label class="custom-control-label" for="customSwitch2">Default Checked Switch</label>
</div>

<div class="custom-control custom-switch custom-switch-md">
  <input type="checkbox" class="custom-control-input" id="customSwitch3">
  <label class="custom-control-label" for="customSwitch3">Default Unchcked Switch</label>
</div>

<div class="custom-control custom-switch custom-switch-md">
  <input type="checkbox" class="custom-control-input" id="customSwitch4" checked>
  <label class="custom-control-label" for="customSwitch4">Default Checked Switch</label>
</div>

<div class="custom-control custom-switch custom-switch-lg">
  <input type="checkbox" class="custom-control-input" id="customSwitch5">
  <label class="custom-control-label" for="customSwitch5">Default Unchcked Switch</label>
</div>

<div class="custom-control custom-switch custom-switch-lg">
  <input type="checkbox" class="custom-control-input" id="customSwitch6" checked>
  <label class="custom-control-label" for="customSwitch6">Default Checked Switch</label>
</div>

<div class="custom-control custom-switch custom-switch-xl">
  <input type="checkbox" class="custom-control-input" id="customSwitch7">
  <label class="custom-control-label" for="customSwitch7">Default Unchcked Switch</label>
</div>

<div class="custom-control custom-switch custom-switch-xl">
  <input type="checkbox" class="custom-control-input" id="customSwitch8" checked>
  <label class="custom-control-label" for="customSwitch8">Default Checked Switch</label>
</div>

对于Bootstrap 5

form-switch-sm, form-switch-md, form-switch-lg, form-switch-xl

SCSS: https://codepen.io/nisharg/pen/gOPLOYY

CSS: https://codepen.io/nisharg/pen/ExPNxYE

实时片段 (CSS)

.form-check-input {
  clear: left;
}

.form-switch.form-switch-sm {
  margin-bottom: 0.5rem; /* JUST FOR STYLING PURPOSE */
}

.form-switch.form-switch-sm .form-check-input {
  height: 1rem;
  width: calc(1rem + 0.75rem);
  border-radius: 2rem;
}

.form-switch.form-switch-md {
  margin-bottom: 1rem; /* JUST FOR STYLING PURPOSE */
}

.form-switch.form-switch-md .form-check-input {
  height: 1.5rem;
  width: calc(2rem + 0.75rem);
  border-radius: 3rem;
}

.form-switch.form-switch-lg {
  margin-bottom: 1.5rem; /* JUST FOR STYLING PURPOSE */
}

.form-switch.form-switch-lg .form-check-input {
  height: 2rem;
  width: calc(3rem + 0.75rem);
  border-radius: 4rem;
}

.form-switch.form-switch-xl {
  margin-bottom: 2rem; /* JUST FOR STYLING PURPOSE */
}

.form-switch.form-switch-xl .form-check-input {
  height: 2.5rem;
  width: calc(4rem + 0.75rem);
  border-radius: 5rem;
}

<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/5.0.0-alpha1/css/bootstrap.min.css">

<div class="form-check form-switch form-switch-sm">
  <input class="form-check-input" type="checkbox" id="flexSwitchCheckDefault">
  <label class="form-check-label" for="flexSwitchCheckDefault">Default switch checkbox input</label>
</div>

<div class="form-check form-switch form-switch-sm">
  <input class="form-check-input" type="checkbox" id="flexSwitchCheckChecked" checked>
  <label class="form-check-label" for="flexSwitchCheckChecked">Checked switch checkbox input</label>
</div>

<div class="form-check form-switch form-switch-md">
  <input class="form-check-input" type="checkbox" id="flexSwitchCheckDefault">
  <label class="form-check-label" for="flexSwitchCheckDefault">Default switch checkbox input</label>
</div>

<div class="form-check form-switch form-switch-md">
  <input class="form-check-input" type="checkbox" id="flexSwitchCheckChecked" checked>
  <label class="form-check-label" for="flexSwitchCheckChecked">Checked switch checkbox input</label>
</div>

<div class="form-check form-switch form-switch-lg">
  <input class="form-check-input" type="checkbox" id="flexSwitchCheckDefault">
  <label class="form-check-label" for="flexSwitchCheckDefault">Default switch checkbox input</label>
</div>

<div class="form-check form-switch form-switch-lg">
  <input class="form-check-input" type="checkbox" id="flexSwitchCheckChecked" checked>
  <label class="form-check-label" for="flexSwitchCheckChecked">Checked switch checkbox input</label>
</div>

<div class="form-check form-switch form-switch-xl">
  <input class="form-check-input" type="checkbox" id="flexSwitchCheckDefault">
  <label class="form-check-label" for="flexSwitchCheckDefault">Default switch checkbox input</label>
</div>

<div class="form-check form-switch form-switch-xl">
  <input class="form-check-input" type="checkbox" id="flexSwitchCheckChecked" checked>
  <label class="form-check-label" for="flexSwitchCheckChecked">Checked switch checkbox input</label>
</div>

Answer 9

Bootstrap 5

我修改了 Nisharg Shah 的 css，现在文本与 Bootstrap V5 示例的开关很好地对齐。因此，我查看了 Bootstrap 5 css 来源并增加了似乎涉及大小调整的所有属性：padding-left、hight、margin-left、width 和 padding-top。我认为结果看起来更好，并且与默认开关外观样式保持一致。

CSS 和 HTML：

.form-switch.form-switch-md {
    padding-left: 4.5em;
    height: 2.5em;
}

.form-switch.form-switch-md .form-check-input {
    margin-left: -4.5em;
    height: 2em;
    width: 4em;
}

.form-switch.form-switch-md .form-check-label {
    padding-top: 0.5em;
}

.form-switch.form-switch-lg {
    padding-left: 8.5em;
    height: 4.5em;
}

.form-switch.form-switch-lg .form-check-input {
    margin-left: -8.5em;
    height: 4em;
    width: 8em;
}

.form-switch.form-switch-lg .form-check-label {
    padding-top: 1.5em;
}

<div class="form-check form-switch">
  <input class="form-check-input" type="checkbox" id="flexSwitchCheckDefault">
  <label class="form-check-label" for="flexSwitchCheckDefault">Original switch unchecked</label>
</div>

<div class="form-check form-switch">
  <input class="form-check-input" type="checkbox" id="flexSwitchCheckChecked" checked>
  <label class="form-check-label" for="flexSwitchCheckChecked">Original switch checked</label>
</div>

<div class="form-check form-switch form-switch-md">
  <input class="form-check-input" type="checkbox" id="flexSwitchCheckDefault">
  <label class="form-check-label" for="flexSwitchCheckDefault">Medium switch unchecked</label>
</div>

<div class="form-check form-switch form-switch-md">
  <input class="form-check-input" type="checkbox" id="flexSwitchCheckChecked" checked>
  <label class="form-check-label" for="flexSwitchCheckChecked">Medium switch checked</label>
</div>

<div class="form-check form-switch form-switch-lg">
  <input class="form-check-input" type="checkbox" id="flexSwitchCheckDefault">
  <label class="form-check-label" for="flexSwitchCheckDefault">Large switch unchecked</label>
</div>

<div class="form-check form-switch form-switch-lg">
  <input class="form-check-input" type="checkbox" id="flexSwitchCheckChecked" checked>
  <label class="form-check-label" for="flexSwitchCheckChecked">Large switch checked</label>
</div>

Answer 10

所有 BOOTSTRAP 版本

没有多余的CSS/SCSS

实际上，解决方案非常简单，要么应用自定义 css/scss 使按钮变大，要么

你可以在开关上使用css的transform: scale(); 属性来增加按钮的大小，相信我这是解决问题最简单的方法而且它有效。


<div class="form-check form-switch py-5">

  <!-- Size of the default switch will increase 1.8 times -->
  <input class="form-check-input mx-2" 
         type="checkbox" 
         role="switch" 
         id="flexSwitchCheckDefault" 
         style="transform: scale(1.8);">

  <label class="form-check-label" 
         for="flexSwitchCheckDefault" 
         id="AucTu">Autocomplete Turned Off</label>
</div>

PS。你不需要添加自定义 css/scss 只是不要忘记从开关添加一些边距，或者从 div 填充（或者它的一部分会被隐藏）:)

Answer 11

在寻找同一问题的解决方案时发现了这一点，但之前的答案中的 none 对我来说效果很好，尤其是当标签带有 checkbox/switch.

时

开始研究边距和行高，但似乎解决方案可能比这简单得多 - 至少在 Bootstrap V5 中，所有尺寸和边距都是相对于 "em" 设置的，因此，更改基本 form-check 元素的字体大小会调整大小并很好地对齐所有内容，无论是否带有标签。

编辑：刚注意到当没有标签时底部边距有点偏离，但可以通过添加空标签或根据需要手动调整 margins/padding 轻松修复。

.form-check-lg {
  font-size: 150%;
}

<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.0.2/dist/css/bootstrap.min.css" rel="stylesheet"/>

<h3>default font size:</h3>
<div class="form-check form-switch">
  <input class="form-check-input" type="checkbox" id="checkbox_1">
  <label class="form-check-label" for="checkbox_1">default</label>
</div>
<div class="form-check"><input class="form-check-input" type="checkbox" id="checkbox_2">
  <label class="form-check-label" for="checkbox_2">default</label>
</div>
<div class="form-check form-switch">
  <input class="form-check-input" type="checkbox">
</div>
<div class="form-check">
  <input class="form-check-input" type="checkbox">
</div>

<h3>larger font size:</h3>
<div class="form-check form-switch form-check-lg">
  <input class="form-check-input" type="checkbox" id="checkbox_3">
  <label class="form-check-label" for="checkbox_3">large</label>
</div>
<div class="form-check form-check-lg">
  <input class="form-check-input" type="checkbox" id="checkbox_4">
  <label class="form-check-label" for="checkbox_4">large</label>
</div>
<div class="form-check form-switch form-check-lg">
  <input class="form-check-input" type="checkbox">
</div>
<div class="form-check form-check-lg">
  <input class="form-check-input" type="checkbox">
</div>

增加 bootstrap 复选框的大小

Increasing the size of a bootstrap checkbox

javascript

css

bootstrap-4

bootstrap-5

对于Bootstrap 4

对于Bootstrap 5

Bootstrap 5

所有 BOOTSTRAP 版本

没有多余的CSS/SCSS