Create custom <input type="range">
controls with .form-range
. The track (the background) and thumb (the value) are both styled to appear the same across browsers. As only Firefox supports “filling” their track from the left or right of the thumb as a means to visually indicate progress, we do not currently support it.
Example range
<label for="customRange1" class="form-label">Example range</label>
<input type="range" class="form-range" id="customRange1">
Disabled
Add the disabled
boolean attribute on an input to give it a grayed out appearance and remove pointer events.
Disabled range
<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
<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
<label for="customRange3" class="form-label">Example range</label>
<input type="range" class="form-range" min="0" max="5" step="0.5" id="customRange3">
Output value
The value of the range input can be shown using the output
element and a bit of JavaScript.
Example range
<label for="customRange4" class="form-label">Example range</label>
<input type="range" class="form-range" min="0" max="100" value="50" id="customRange4">
<output for="customRange4" id="rangeValue" aria-hidden="true"></output>
<script>
// This is an example script, please modify as needed
const rangeInput = document.getElementById('customRange4');
const rangeOutput = document.getElementById('rangeValue');
// Set initial value
rangeOutput.textContent = rangeInput.value;
rangeInput.addEventListener('input', function() {
rangeOutput.textContent = this.value;
});
</script>
Customizing SASS variables
$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
$form-range-thumb-active-bg: tint-color($primary, 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;
CoreUI vs Bootstrap
While this Form Range component is fully compatible with Bootstrap and follows its core principles, CoreUI delivers a more complete solution for modern app development.
What sets CoreUI apart from Bootstrap?
Whether you’re building internal tools, dashboards, or SaaS platforms — CoreUI combines the familiarity of Bootstrap with a more powerful, scalable, and production-ready ecosystem.
👉 Explore CoreUI Bootstrap Components
👉 Compare CoreUI vs Bootstrap
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