Sliders enable the selection of a single value, or a range of values, by manipulating handles along a linear scale.
A label must appear preceding every slider. Values depicted in the label do not update as the slider is manipulated, to remain consistent with all other component labels.
Sliders default to a horizontal orientation to leverage the landscape orientation of most screens.
The current value is persistent and updates as the user interacts with a handle:
The current value is also displayed as a tooltip above a handle while it's being manipulated.
When the slider has two handles, they are unable to pass one another or move close enough to equal the same value.
The default step value = 1 for a slider. This causes its handle to move smoothly along the linear scale by stepping one value at a time.
Sliders may also be vertically oriented:
Title case, 2-3 words maximum.
Do not combine actions in a label (exception: "Customize & Buy").
If standard labels don't fit the button's purpose, align label with the task the user is attempting.
Please refer to the Dell Technologies branding website, https://brand.delltechnologies.com/faq/#voice, for further information regarding call-to-action labels and usage.
To be determined.
The W3C Web Accessibility Initiative (WAI) develops standards and support materials to help you understand and implement accessibility.
Please follow the best practices for single-thumb sliders from WAI-ARIA authoring practices 1.1.
Please also refer to these recommendations for sliders from WAI-ARIA 1.1.
You may refer to this example of a horizontal slider or these examples of sliders with aria-orientation and aria-valuetext from WAI-ARIA practices 1.1.
You may also refer to this tutorial for validating common input from Web Accessibility Tutorials.
In addition to the above, please follow the best practices for multi-thumb sliders from WAI-ARIA authoring practices 1.1.
You may refer to this example of a horizontal multi-thumb slider from WAI-ARIA practices 1.1.