如何更改 Bootstrap 4 范围滑块颜色？

Question

是否有任何想法如何自定义引导程序 4 范围颜色并将蓝色拇指颜色更改为“灰色”？

在下面输入html。

<p id="slider" class="range-field">
  <input 
    type: "range",
    min:"0" max:"3"
    class: "custom-range"
    value: "2"
    disabled: "true"
  />
</p>

Answer 1

尝试以下代码 - 各种供应商特定的类，根据您的要求使用：

.custom-range::-webkit-slider-thumb {
  background: gray;
}

.custom-range::-moz-range-thumb {
  background: gray;
}

.custom-range::-ms-thumb {
  background: gray;
}

Astariul 和 aliawadh980 的每个 cmets，更改单击拇指时出现的阴影，如下所示：

-webkit-slider-thumb:active {
    background-color: red;
}
-webkit-slider-thumb,
.custom-range:focus::-webkit-slider-thumb, 
.custom-range:focus::-moz-range-thumb,
.custom-range:focus::-ms-thumb {
    box-shadow: red;
}

Answer 2

如果您使用的是 Sass，则必须将 $custom-control-indicator-checked-bg 变量的值从 _variables.scss 更改（覆盖）。

$custom-control-indicator-checked-bg 的默认值为：

$component-active-bg: theme-color("primary") !default;
// ...
$custom-checkbox-indicator-indeterminate-bg: $component-active-bg !default;

Answer 3

1. 本指南也适用于 Bootstrap：How to Style Input Type Range in Chrome, Firefox, and IE。

2. 您可以从最新版本打开bootstrap.css，搜索“范围”并使用您找到的代码作为示例：

.form-range {
  width: 100%;
  height: 1.5rem;
  padding: 0;
  background-color: transparent;
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
}
.form-range:focus {
  outline: 0;
}
.form-range:focus::-webkit-slider-thumb {
  box-shadow: 0 0 0 1px #fff, 0 0 0 0.25rem rgba(13, 110, 253, 0.25);
}
.form-range:focus::-moz-range-thumb {
  box-shadow: 0 0 0 1px #fff, 0 0 0 0.25rem rgba(13, 110, 253, 0.25);
}
.form-range::-moz-focus-outer {
  border: 0;
}
.form-range::-webkit-slider-thumb {
  width: 1rem;
  height: 1rem;
  margin-top: -0.25rem;
  background-color: #0d6efd;
  border: 0;
  border-radius: 1rem;
  -webkit-transition: background-color 0.15s ease-in-out, border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;
  transition: background-color 0.15s ease-in-out, border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;
  -webkit-appearance: none;
  appearance: none;
}
@media (prefers-reduced-motion: reduce) {
  .form-range::-webkit-slider-thumb {
    -webkit-transition: none;
    transition: none;
  }
}
.form-range::-webkit-slider-thumb:active {
  background-color: #b6d4fe;
}
.form-range::-webkit-slider-runnable-track {
  width: 100%;
  height: 0.5rem;
  color: transparent;
  cursor: pointer;
  background-color: #dee2e6;
  border-color: transparent;
  border-radius: 1rem;
}
.form-range::-moz-range-thumb {
  width: 1rem;
  height: 1rem;
  background-color: #0d6efd;
  border: 0;
  border-radius: 1rem;
  -moz-transition: background-color 0.15s ease-in-out, border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;
  transition: background-color 0.15s ease-in-out, border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;
  -moz-appearance: none;
  appearance: none;
}
@media (prefers-reduced-motion: reduce) {
  .form-range::-moz-range-thumb {
    -moz-transition: none;
    transition: none;
  }
}
.form-range::-moz-range-thumb:active {
  background-color: #b6d4fe;
}
.form-range::-moz-range-track {
  width: 100%;
  height: 0.5rem;
  color: transparent;
  cursor: pointer;
  background-color: #dee2e6;
  border-color: transparent;
  border-radius: 1rem;
}
.form-range:disabled {
  pointer-events: none;
}
.form-range:disabled::-webkit-slider-thumb {
  background-color: #adb5bd;
}
.form-range:disabled::-moz-range-thumb {
  background-color: #adb5bd;
}