HTML Range Examples with aria-orientation and aria-valuetext
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+ The following example of a temperature range slider demonstrating the using aria-valuetext and aria-orientation on an input[type="range"] control.
+ The desired temperature is set with the range control, which is vertically oriented.
+ The range control illustrate how to use aria-valuetext to provide assistive technologies with meaningful names for numeric values.
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Similar examples include:
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Color Viewer Slider Example: Basic horizontal sliders that illustrate setting numeric values for a color picker.
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Temperature Selector Slider Example: Demonstrates using aria-orientation to specify vertical orientation and aria-valuetext to communicate unit of measure for a temperature input.
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Rating Slider Example: Horizontal slider that demonstrates using aria-valuetext to communicate current and maximum value of a rating input for a five star rating scale.
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Horizontal Multi-Thumb Slider Example: Demonstrates using sliders with two thumbs to provide inputs for numeric ranges, such as for searching in a price range.
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Example
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25.0°C
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Accessibility Features
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+ The accessible name for the temperature control is defined using the label element with the for attribute referencing the id of the range control.
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+ A border around the thumb is used for indicating the range control with keyboard focus using browser specific CSS properties.
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+ The width of the rail is increased to provide a larger target for changing the value using a pointing device.
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Keyboard Support
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Keyboard support for the temperature control is provided by the native browser support for the input[type="range"] element.
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Key
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Function
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+ Right Arrow
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Increases slider value one step.
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+ Up Arrow
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Increases slider value one step.
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+ Left Arrow
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Decreases slider value one step.
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+ Down Arrow
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Decreases slider value one step.
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+ Page Up
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Increases temperature slider value multiple steps. In this slider, jumps 18 steps (e.g. 1.8°C) on most browsers.
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+ Page Down
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Decreases temperature slider value multiple steps. In this slider, jumps 18 steps (e.g. 1.8°C) on most browsers.
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+ Home
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Sets slider to its minimum value.
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+ End
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Sets slider to its maximum value.
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Role, Property, State, and Tabindex Attributes
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Role
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Attribute
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Element
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Usage
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+ aria-valuetext
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+ input[type="range"]
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A string value that provides a user-friendly name for the current value of the range.
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For the temperature range, is the value of the range appended with the text "°C".
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+ aria-orientation="vertical"
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+ input[type="range"]
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Indicates the orientation of the input element.
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Set to vertical for the temperature range control.