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Select/Dropdown Components

Select and dropdown components are fundamental form elements for allowing users to choose from a predefined list of options. This guide outlines best practices for creating accessible and responsive controls.

mysimulator teamUpdated June 2026≈ 3 min read▶ Open the simulation

Select / Dropdown Form Components

Design accessible select controls (native and custom) with clear states, search, and responsive behavior.

Label, trigger button (or native select), value/placeholder, caret icon, helper text, error text. Padding 12–14px vertical, 14–16px horizontal; border 1px neutral; radius 6–8px. Menu uses shadow-2 and border.

Default/hover/focus with focus ring.

Open: menu anchored to trigger; scrollable with max height.

Error/success: semantic border and message.

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Disabled: muted text, no hover; disable caret interaction.

Provide inline search for lists > 12 items. Support empty state and loading. Group options with headers; allow keyboard typing to filter.

Consider async loading for very long lists. Show selected chips inside trigger or summary (“3 selected”). Provide “Select all / Clear all” controls. Keyboard navigation must support selection toggles with space/enter.

Frequently asked questions

What roles should be used for select and option elements?

Use appropriate roles: listbox/option or native select. Manage aria-expanded , aria-controls , aria-activedescendant . Keep focus inside menu; close on ESC. Ensure 44px targets in menu for touch.

How should dropdown menus adapt to different screen sizes, particularly on mobile?

Full width on mobile; menu uses full width if space constrained. Increase touch padding; allow search to remain visible. Avoid hover reliance; use tap to open.

© 2024 AI Usage by Countries. Select/dropdown components?

© 2024 AI Usage by Countries. Select/dropdown components.

When was this document last updated?

Last updated: 2024 | Design System

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