pattern-library checked
U.S. Web Design System: Input prefix/suffix
Documents input prefixes and suffixes for commonly understood symbols, units, abbreviations, and icons; requires descriptive labels because affixes are hidden from screen readers; warns against open-ended fields and unclear abbreviations; and documents error and success group states.
Pattern Decisions This Source Supports
| Pattern | Supported decision | Required contract | Claim note |
|---|---|---|---|
| Input prefix/suffix | Choose input prefix/suffix when a common fixed symbol, unit, abbreviation, domain, or icon clarifies what the text input accepts. | The affix is visible near the input but not editable as part of the field value. | USWDS supports affixes for common symbols, units, abbreviations, and icons, with descriptive labels because affixes are hidden from screen readers. |
Evidence Role
This source is treated as pattern-library evidence. Use it to validate the decision rules above, not as a visual style reference.
Publisher: U.S. Web Design System. Last checked: .