Slider
Elements
Section titled “Elements”<div class="tng-slider"> <div class="tng-slider-track"></div></div>Labels
Section titled “Labels”<div class="tng-slider"> <div class="tng-slider-labels"> <div style="--tng-slider-label-value: 0.5">50%</div> </div> <div class="tng-slider-bar"> <div class="tng-slider-track"></div> <div class="tng-slider-thumb" style="--tng-slider-thumb-value: 0.5" ></div> </div> <div class="tng-slider-labels"> <div style="--tng-slider-label-value: 0">0%</div> <div style="--tng-slider-label-value: 0.5">50%</div> <div style="--tng-slider-label-value: 1">100%</div> </div></div>Progress
Section titled “Progress”<div class="tng-slider"> <div class="tng-slider-bar"> <div class="tng-slider-track"></div> <div class="tng-slider-progress" style=" --tng-slider-progress-start: 0.5; --tng-slider-progress-end: 0.75; " ></div> </div></div><div class="tng-slider"> <div class="tng-slider-bar"> <div class="tng-slider-track"></div> <div class="tng-slider-thumb"></div> <div class="tng-slider-thumb" style="--tng-slider-thumb-value: 0.25" ></div> <div class="tng-slider-thumb" style="--tng-slider-thumb-value: 0.5" ></div> </div></div>Active
Section titled “Active”<div class="tng-slider"> <div class="tng-slider-bar"> <div class="tng-slider-track"></div> <div class="tng-slider-thumb is-active" style="--tng-slider-thumb-value: 0.5" ></div> </div></div>Disabled
Section titled “Disabled”<div class="tng-slider"> <div class="tng-slider-bar"> <div class="tng-slider-track"></div> <div class="tng-slider-thumb is-disabled" style="--tng-slider-thumb-value: 0.5" ></div> </div></div>Schemes
Section titled “Schemes”<div class="tng-slider"> <div class="tng-slider-track"></div></div><div class="tng-slider is-ev"> <div class="tng-slider-track"></div></div><div class="tng-slider is-range"> <div class="tng-slider-track"></div></div><div class="tng-slider is-temperature"> <div class="tng-slider-track"></div></div>Range Input
Section titled “Range Input”<div class="tng-slider"> <input style="--tng-slider-progress-value: 0.5" type="range" /></div>With datalist
Section titled “With datalist”A <datalist> linked via list / id provides snap-to-step behavior on the native range input. Hide it with .sr-only since rendering is inconsistent across browsers, and use a separate .tng-slider-labels div with role="presentation" for the visual labels.
<div class="tng-slider"> <input list="slider-options" type="range" min="0" max="100" step="25" /> <datalist class="sr-only" id="slider-options"> <option value="0"></option> <option value="25"></option> <option value="50"></option> <option value="75"></option> <option value="100"></option> </datalist> <div class="tng-slider-labels" role="presentation"> <div style="--tng-slider-label-value: 0">0%</div> <div style="--tng-slider-label-value: 0.25">25%</div> <div style="--tng-slider-label-value: 0.5">50%</div> <div style="--tng-slider-label-value: 0.75">75%</div> <div style="--tng-slider-label-value: 1">100%</div> </div></div>Disabled
Section titled “Disabled”<div class="tng-slider"> <input disabled type="range" /></div>Accessibility
Section titled “Accessibility”Semantic markup
Section titled “Semantic markup”Use <input type="range"> whenever possible — it provides role="slider" implicitly, with built-in aria-valuemin, aria-valuemax, and aria-valuenow derived from the min, max, and value attributes.
When using the custom div-based elements (.tng-slider-thumb, .tng-slider-track) for visual purposes, an underlying <input type="range"> should still drive the semantics. If a native input cannot be used, apply role="slider" manually together with the required ARIA properties.
Labels
Section titled “Labels”Associate a visible label with the input via <label for="..."> or aria-label / aria-labelledby. The top value labels (.tng-slider-labels) are visual — they do not provide an accessible name by themselves.
Use aria-valuetext when the numeric value alone is not meaningful (e.g. aria-valuetext="50%" or aria-valuetext="Moderate").
Keyboard interaction
Section titled “Keyboard interaction”| Key | Action |
|---|---|
| ← / → | Decrease / increase value by one step |
| ↑ / ↓ | Decrease / increase value by one step |
| Home / End | Set to minimum / maximum value |
| Page Up / Page Down | Increase / decrease by a larger step (browser-defined) |
Native <input type="range"> handles all of the above automatically.
Disabled state
Section titled “Disabled state”Using the native disabled attribute on <input type="range"> removes it from the tab order and announces it as disabled to assistive technologies.
The .is-disabled class on .tng-slider-thumb is visual only — pair it with aria-disabled="true" if used on a custom role="slider" element.
Datalist
Section titled “Datalist”Use .sr-only on <datalist> to visually hide it — browser rendering of datalist for range inputs is inconsistent (Safari renders nothing, Firefox ignores positioning). The list / id linkage still provides snap-to-step behavior where supported.
The visual .tng-slider-labels div should use role="presentation" since the labels are decorative duplicates of the datalist values and should not be announced separately.