Design System
Form fields
Text
<label for="fd85" class="usa-label">Text input</label>
<input id="fd85" type="text" class="usa-input">
<label for="e8c5" class="usa-label">Textarea (multiline) input</label>
<textarea id="e8c5" type="text" class="usa-textarea"></textarea>
Dates
Three text fields are the easiest way for users to enter most dates.
<fieldset class="usa-fieldset">
<legend class="usa-legend">Date of birth</legend>
<div class="usa-memorable-date">
<div class="usa-form-group usa-form-group--month">
<label for="f5bf" class="usa-label">Month</label>
<input id="f5bf" class="usa-input usa-input--inline" aria-describedby="d7d4" type="number" min="1" max="12">
</div>
<div class="usa-form-group usa-form-group--day">
<label for="b0fe" class="usa-label">Day</label>
<input id="b0fe" class="usa-input usa-input--inline" aria-describedby="d7d4" type="number" min="1" max="31">
</div>
<div class="usa-form-group usa-form-group--year">
<label for="dc41" class="usa-label">Year</label>
<input id="dc41" class="usa-input usa-input--inline" aria-describedby="d7d4" type="number" min="1900" max="2000">
</div>
</div>
<span class="usa-form-hint" id="d7d4">Example: 04 28 1986</span>
</fieldset>
Dropdowns
<label for="ab84" class="usa-label">Dropdown label</label>
<select id="ab84" class="usa-select">
<option value>- Select -</option>
<option value="value1">Option A</option>
<option value="value2">Option B</option>
<option value="value3">Option C</option>
</select>
Radio buttons
Three styles of radio buttons are provided. Always label the grouping of items using a fieldset and legend for screen readers, using the usa-sr-only class. Do not use the label for visual rendering, as it has rendering quirks, unfortunately.
Simple
<fieldset class="usa-fieldset">
<legend class="usa-sr-only">Group label</legend>
<ul class="usa-input-list">
<li>
<input id="fa61" class="usa-radio__input" type="radio" name="de1a">
<label for="fa61" class="usa-radio__label">Option 1</label>
</li>
<li>
<input id="a786" class="usa-radio__input" type="radio" name="de1a" checked>
<label for="a786" class="usa-radio__label">Option 2</label>
</li>
<li>
<input id="b306" class="usa-radio__input" type="radio" name="de1a" disabled>
<label for="b306" class="usa-radio__label">Option 3</label>
</li>
</ul>
</fieldset>
Normal
<fieldset class="usa-fieldset">
<legend class="usa-sr-only">Group label</legend>
<ul class="usa-input-list grid-row grid-gap-md">
<li class="grid-col">
<input id="a7e9" class="usa-radio__input" type="radio" name="a69d">
<label for="a7e9" class="usa-radio__label usa-radio-bordered">Option 1</label>
</li>
<li class="grid-col">
<input id="b7d5" class="usa-radio__input" type="radio" name="a69d" checked>
<label for="b7d5" class="usa-radio__label usa-radio-bordered">Option 2</label>
</li>
<li class="grid-col">
<input id="db6f" class="usa-radio__input" type="radio" name="a69d" disabled>
<label for="db6f" class="usa-radio__label usa-radio-bordered">Option 3</label>
</li>
</ul>
</fieldset>
Large
<fieldset class="usa-fieldset">
<legend class="usa-sr-only">Group label</legend>
<ul class="usa-input-list">
<li>
<input id="a8c1" class="usa-radio__input" type="radio" name="d815">
<label for="a8c1" class="usa-radio__label usa-radio-bordered usa-radio-large">
<!-- Use the accurate heading level to maintain the document outline -->
<h4 class="usa-radio-header">Option 1</h4>
<p>Button support text</p>
</label>
</li>
<li>
<input id="b4ed" class="usa-radio__input" type="radio" name="d815" checked>
<label for="b4ed" class="usa-radio__label usa-radio-bordered usa-radio-large">
<h4 class="usa-radio-header">Option 2</h4>
<p>Button support text</p>
</label>
</li>
<li>
<input id="b93f" class="usa-radio__input" type="radio" name="d815" disabled>
<label for="b93f" class="usa-radio__label usa-radio-bordered usa-radio-large">
<h4 class="usa-radio-header">Option 3</h4>
<p>Button support text</p>
</label>
</li>
</ul>
</fieldset>
Checkboxes
Three styles of checkboxes are provided as well. Always label the grouping of items using a fieldset and legend for screen readers, using the usa-sr-only class. Do not use the label for visual rendering, as it has rendering quirks, unfortunately.
Simple
<fieldset class="usa-fieldset">
<legend class="usa-sr-only">Group label</legend>
<ul class="usa-input-list">
<li>
<input id="dee5" class="usa-checkbox__input" type="checkbox" name="e189">
<label for="dee5" class="usa-checkbox__label">Option 1</label>
</li>
<li>
<input id="b711" class="usa-checkbox__input" type="checkbox" name="e189" checked>
<label for="b711" class="usa-checkbox__label">Option 2</label>
</li>
<li>
<input id="badc" class="usa-checkbox__input" type="checkbox" name="e189" disabled>
<label for="badc" class="usa-checkbox__label">Option 3</label>
</li>
</ul>
</fieldset>
Normal
<fieldset class="usa-fieldset">
<legend class="usa-sr-only">Group label</legend>
<ul class="usa-input-list grid-row grid-gap-md">
<li class="grid-col">
<input id="d30c" class="usa-checkbox__input" type="checkbox" name="a792">
<label for="d30c" class="usa-checkbox__label usa-checkbox-bordered">Option 1</label>
</li>
<li class="grid-col">
<input id="a123" class="usa-checkbox__input" type="checkbox" name="a792" checked>
<label for="a123" class="usa-checkbox__label usa-checkbox-bordered">Option 2</label>
</li>
<li class="grid-col">
<input id="c6b3" class="usa-checkbox__input" type="checkbox" name="a792" disabled>
<label for="c6b3" class="usa-checkbox__label usa-checkbox-bordered">Option 3</label>
</li>
</ul>
</fieldset>
Large
<fieldset class="usa-fieldset">
<legend class="usa-sr-only">Group label</legend>
<ul class="usa-input-list">
<li>
<input id="c288" class="usa-checkbox__input" type="checkbox" name="befb">
<label for="c288" class="usa-checkbox__label usa-checkbox-bordered usa-checkbox-large">
<!-- Use the accurate heading level to maintain the document outline -->
<h4 class="usa-checkbox-header">Option 1</h4>
<p>Button support text</p>
</label>
</li>
<li>
<input id="e484" class="usa-checkbox__input" type="checkbox" name="befb" checked>
<label for="e484" class="usa-checkbox__label usa-checkbox-bordered usa-checkbox-large">
<h4 class="usa-checkbox-header">Option 2</h4>
<p>Button support text</p>
</label>
</li>
<li>
<input id="ea84" class="usa-checkbox__input" type="checkbox" name="befb" disabled>
<label for="ea84" class="usa-checkbox__label usa-checkbox-bordered usa-checkbox-large">
<h4 class="usa-checkbox-header">Option 3</h4>
<p>Button support text</p>
</label>
</li>
</ul>
</fieldset>
Form field groups
The fieldsets inputs default to a new line, unless the grid system is used to create a grid row.
<fieldset class="usa-fieldset">
<legend class="usa-legend">Full name</legend>
<label for="c985" class="usa-label">First name</label>
<input id="c985" type="text" class="usa-input">
<label for="a2d8" class="usa-label">Last name</label>
<input id="a2d8" type="text" class="usa-input">
</fieldset>
Form validation errors
<label for="e9a4" class="usa-label">Text input validation example</label>
<input id="e9a4" type="text" class="usa-input usa-input-error">
<span class="usa-input-error-message" role="alert">Error message text.</span>
Examples of form validation error for other input types
Follow the same pattern of applying .usa-input--error to the effected input and append the error message in the appropriate span.
<label for="a37c" class="usa-label">Textarea (multiline) input</label>
<textarea id="a37c" type="text" class="usa-textarea usa-input--error"></textarea>
<span class="usa-input--error-message" role="alert">Error message text.</span>
<fieldset class="usa-fieldset">
<legend class="usa-legend">Date of birth</legend>
<div class="usa-memorable-date">
<div class="usa-form-group usa-form-group--month">
<label for="e30e" class="usa-label">Month</label>
<input id="e30e" class="usa-input usa-input--inline usa-input--error" aria-describedby="f9e5" type="number" min="1" max="12">
</div>
<div class="usa-form-group usa-form-group--day">
<label for="b857" class="usa-label">Day</label>
<input id="b857" class="usa-input usa-input--inline usa-input--error" aria-describedby="f9e5" type="number" min="1" max="31">
</div>
<div class="usa-form-group usa-form-group--year">
<label for="a5dc" class="usa-label">Year</label>
<input id="a5dc" class="usa-input usa-input--inline usa-input--error" aria-describedby="f9e5" type="number" min="1900" max="2000">
</div>
</div>
<span class="usa-form-hint" id="f9e5">Example: 04 28 1986</span>
<span class="usa-input--error-message" role="alert">Error message text.</span>
</fieldset>
<label for="d8e1" class="usa-label">Dropdown label</label>
<select id="d8e1" class="usa-select usa-input--error">
<option value>- Select -</option>
<option value="value1">Option A</option>
<option value="value2">Option B</option>
<option value="value3">Option C</option>
</select>
<span class="usa-input--error-message" role="alert">Error message text.</span>
Radio buttons and checkboxes
For radio buttons and checkboxes, simply add an error message directly after the input list. Do not apply .usa-input--error to the effected inputs.
<fieldset class="usa-fieldset">
<legend class="usa-sr-only">Group label</legend>
<ul class="usa-input-list">
<li>
<input id="f5c3" class="usa-radio__input" type="radio" name="c8ff">
<label for="f5c3" class="usa-radio__label">Option 1</label>
</li>
<li>
<input id="b6bf" class="usa-radio__input" type="radio" name="c8ff" checked>
<label for="b6bf" class="usa-radio__label">Option 2</label>
</li>
<li>
<input id="bdfd" class="usa-radio__input" type="radio" name="c8ff" disabled>
<label for="bdfd" class="usa-radio__label">Option 3</label>
</li>
</ul>
</fieldset>
<span class="usa-input--error-message usa-input--error-message-with-icon" role="alert">Error message text.</span>
<fieldset class="usa-fieldset">
<legend class="usa-sr-only">Group label</legend>
<ul class="usa-input-list grid-row grid-gap-md">
<li class="grid-col">
<input id="e5a0" class="usa-radio__input" type="radio" name="de9e">
<label for="e5a0" class="usa-radio__label usa-radio-bordered">Option 1</label>
</li>
<li class="grid-col">
<input id="c1a1" class="usa-radio__input" type="radio" name="de9e" checked>
<label for="c1a1" class="usa-radio__label usa-radio-bordered">Option 2</label>
</li>
<li class="grid-col">
<input id="b8da" class="usa-radio__input" type="radio" name="de9e" disabled>
<label for="b8da" class="usa-radio__label usa-radio-bordered">Option 3</label>
</li>
</ul>
</fieldset>
<span class="usa-input--error-message usa-input--error-message-with-icon" role="alert">Error message text.</span>
<fieldset class="usa-fieldset">
<legend class="usa-sr-only">Group label</legend>
<ul class="usa-input-list">
<li>
<input id="fdf0" class="usa-radio__input" type="radio" name="ceb9">
<label for="fdf0" class="usa-radio__label usa-radio-bordered usa-radio-large">
<!-- Use the accurate heading level to maintain the document outline -->
<h4 class="usa-radio-header">Option 1</h4>
<p>Button support text</p>
</label>
</li>
<li>
<input id="d546" class="usa-radio__input" type="radio" name="ceb9" checked>
<label for="d546" class="usa-radio__label usa-radio-bordered usa-radio-large">
<h4 class="usa-radio-header">Option 2</h4>
<p>Button support text</p>
</label>
</li>
<li>
<input id="b2bb" class="usa-radio__input" type="radio" name="ceb9" disabled>
<label for="b2bb" class="usa-radio__label usa-radio-bordered usa-radio-large">
<h4 class="usa-radio-header">Option 3</h4>
<p>Button support text</p>
</label>
</li>
</ul>
</fieldset>
<span class="usa-input--error-message usa-input--error-message-with-icon" role="alert">Error message text.</span>
<fieldset class="usa-fieldset">
<legend class="usa-sr-only">Group label</legend>
<ul class="usa-input-list">
<li>
<input id="f5c1" class="usa-checkbox__input" type="checkbox" name="b851">
<label for="f5c1" class="usa-checkbox__label">Option 1</label>
</li>
<li>
<input id="d21f" class="usa-checkbox__input" type="checkbox" name="b851" checked>
<label for="d21f" class="usa-checkbox__label">Option 2</label>
</li>
<li>
<input id="c30e" class="usa-checkbox__input" type="checkbox" name="b851" disabled>
<label for="c30e" class="usa-checkbox__label">Option 3</label>
</li>
</ul>
</fieldset>
<span class="usa-input--error-message usa-input--error-message-with-icon" role="alert">Error message text.</span>
<fieldset class="usa-fieldset">
<legend class="usa-sr-only">Group label</legend>
<ul class="usa-input-list grid-row grid-gap-md">
<li class="grid-col">
<input id="ac05" class="usa-checkbox__input" type="checkbox" name="a4b3">
<label for="ac05" class="usa-checkbox__label usa-checkbox-bordered">Option 1</label>
</li>
<li class="grid-col">
<input id="bce9" class="usa-checkbox__input" type="checkbox" name="a4b3" checked>
<label for="bce9" class="usa-checkbox__label usa-checkbox-bordered">Option 2</label>
</li>
<li class="grid-col">
<input id="a677" class="usa-checkbox__input" type="checkbox" name="a4b3" disabled>
<label for="a677" class="usa-checkbox__label usa-checkbox-bordered">Option 3</label>
</li>
</ul>
</fieldset>
<span class="usa-input--error-message usa-input--error-message-with-icon" role="alert">Error message text.</span>
<fieldset class="usa-fieldset">
<legend class="usa-sr-only">Group label</legend>
<ul class="usa-input-list">
<li>
<input id="b340" class="usa-checkbox__input" type="checkbox" name="b998">
<label for="b340" class="usa-checkbox__label usa-checkbox-bordered usa-checkbox-large">
<!-- Use the accurate heading level to maintain the document outline -->
<h4 class="usa-checkbox-header">Option 1</h4>
<p>Button support text</p>
</label>
</li>
<li>
<input id="aafb" class="usa-checkbox__input" type="checkbox" name="b998" checked>
<label for="aafb" class="usa-checkbox__label usa-checkbox-bordered usa-checkbox-large">
<h4 class="usa-checkbox-header">Option 2</h4>
<p>Button support text</p>
</label>
</li>
<li>
<input id="dc6c" class="usa-checkbox__input" type="checkbox" name="b998" disabled>
<label for="dc6c" class="usa-checkbox__label usa-checkbox-bordered usa-checkbox-large">
<h4 class="usa-checkbox-header">Option 3</h4>
<p>Button support text</p>
</label>
</li>
</ul>
</fieldset>
<span class="usa-input--error-message usa-input--error-message-with-icon" role="alert">Error message text.</span>