Range

使用我们的自定义范围输入实现一致的跨浏览器样式和内置自定义。

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概述

使用.form-range创建自定义<input type="range">控件。 track（背景）和thumb（值）的样式在浏览器中显示相同。由于只有Firefox支持从thumb的左侧或右侧"filling"轨迹，以直观地指示进度，因此我们目前不支持它。

Example range

html

<label for="customRange1" class="form-label">Example range</label>
<input type="range" class="form-range" id="customRange1">

Disabled

在输入上添加disabled布尔属性以使其显示为灰色，删除指针事件并防止聚焦。

Disabled range

html

<label for="disabledRange" class="form-label">Disabled range</label>
<input type="range" class="form-range" id="disabledRange" disabled>

Min and max

Range inputs have implicit values for min and max—0 and 100, respectively. You may specify new values for those using the min and max attributes.

Example range

html

<label for="customRange2" class="form-label">Example range</label>
<input type="range" class="form-range" min="0" max="5" id="customRange2">

Steps

By default, range inputs “snap” to integer values. To change this, you can specify a step value. In the example below, we double the number of steps by using step="0.5".

Example range

html

<label for="customRange3" class="form-label">Example range</label>
<input type="range" class="form-range" min="0" max="5" step="0.5" id="customRange3">

CSS

Sass variables

scss/_variables.scss

$form-range-track-width:          100%;
$form-range-track-height:         .5rem;
$form-range-track-cursor:         pointer;
$form-range-track-bg:             var(--#{$prefix}secondary-bg);
$form-range-track-border-radius:  1rem;
$form-range-track-box-shadow:     var(--#{$prefix}box-shadow-inset);

$form-range-thumb-width:                   1rem;
$form-range-thumb-height:                  $form-range-thumb-width;
$form-range-thumb-bg:                      $component-active-bg;
$form-range-thumb-border:                  0;
$form-range-thumb-border-radius:           1rem;
$form-range-thumb-box-shadow:              0 .1rem .25rem rgba($black, .1);
$form-range-thumb-focus-box-shadow:        0 0 0 1px $body-bg, $input-focus-box-shadow;
$form-range-thumb-focus-box-shadow-width:  $input-focus-width; // For focus box shadow issue in Edge
$form-range-thumb-active-bg:               tint-color($component-active-bg, 70%);
$form-range-thumb-disabled-bg:             var(--#{$prefix}secondary-color);
$form-range-thumb-transition:              background-color .15s ease-in-out, border-color .15s ease-in-out, box-shadow .15s ease-in-out;