Bootstrap 3 Tutorial

Bootstrap 3 Forms

Last modified on: October 28, 2024

<div class="flex-shrink-0 flex flex-col relative items-end">
<div>
<div class="pt-0">
<div class="gizmo-bot-avatar flex h-8 w-8 items-center justify-center overflow-hidden rounded-full">&nbsp;</div>
</div>
</div>
</div>
<div class="group/conversation-turn relative flex w-full min-w-0 flex-col agent-turn">
<div class="flex-col gap-1 md:gap-3">
<div class="flex max-w-full flex-col flex-grow">
<div class="min-h-8 text-message flex w-full flex-col items-end gap-2 whitespace-normal break-words [.text-message+&amp;]:mt-5" dir="auto" data-message-author-role="assistant" data-message-id="a3e48e6e-30d1-423e-839e-052f6c87ee45" data-message-model-slug="gpt-4o-mini">
<div class="flex w-full flex-col gap-1 empty:hidden first:pt-[3px]">
<div class="markdown prose w-full break-words dark:prose-invert light">
<h3>Bootstrap 3 Forms</h3>
<p>Forms are a crucial part of any web application, allowing users to input data. Bootstrap 3 provides a simple and elegant way to create responsive forms that are easy to customize and style. Below is a detailed guide on how to create forms using Bootstrap 3.</p>
<hr />
<h3>Basic Form Structure</h3>
<p>The basic structure of a Bootstrap 3 form includes the <code>.form-group</code> class for grouping related elements, along with various input types, labels, and buttons.</p>
<h4>Example of a Basic Form</h4>
<div class="contain-inline-size rounded-md border-[0.5px] border-token-border-medium relative bg-token-sidebar-surface-primary dark:bg-gray-950">
<div class="flex items-center text-token-text-secondary px-4 py-2 text-xs font-sans justify-between rounded-t-md h-9 bg-token-sidebar-surface-primary dark:bg-token-main-surface-secondary">html</div>
<div class="sticky top-9 md:top-[5.75rem]">
<div class="absolute bottom-0 right-2 flex h-9 items-center">
<div class="flex items-center rounded bg-token-sidebar-surface-primary px-2 font-sans text-xs text-token-text-secondary dark:bg-token-main-surface-secondary">
<pre class="language-markup"><code>&lt;!DOCTYPE html&gt;
&lt;html lang="en"&gt;
&lt;head&gt;
    &lt;meta charset="UTF-8"&gt;
    &lt;meta name="viewport" content="width=device-width, initial-scale=1"&gt;
    &lt;title&gt;Bootstrap 3 Forms Example&lt;/title&gt;
    &lt;link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css"&gt;
&lt;/head&gt;
&lt;body&gt;

&lt;div class="container"&gt;
    &lt;h2&gt;Contact Us&lt;/h2&gt;
    &lt;form&gt;
        &lt;div class="form-group"&gt;
            &lt;label for="name"&gt;Name:&lt;/label&gt;
            &lt;input type="text" class="form-control" id="name" placeholder="Enter your name" required&gt;
        &lt;/div&gt;
        &lt;div class="form-group"&gt;
            &lt;label for="email"&gt;Email:&lt;/label&gt;
            &lt;input type="email" class="form-control" id="email" placeholder="Enter your email" required&gt;
        &lt;/div&gt;
        &lt;div class="form-group"&gt;
            &lt;label for="message"&gt;Message:&lt;/label&gt;
            &lt;textarea class="form-control" id="message" rows="5" placeholder="Enter your message" required&gt;&lt;/textarea&gt;
        &lt;/div&gt;
        &lt;button type="submit" class="btn btn-primary"&gt;Submit&lt;/button&gt;
    &lt;/form&gt;
&lt;/div&gt;

&lt;script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js"&gt;&lt;/script&gt;
&lt;script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"&gt;&lt;/script&gt;
&lt;/body&gt;
&lt;/html&gt;
</code></pre>
</div>
</div>
</div>
</div>
<hr />
<h3>Key Components of Bootstrap 3 Forms</h3>
<ol>
<li>
<p><strong>Form Group</strong>: Each input field is wrapped in a <code>.form-group</code> class to maintain proper spacing and alignment.</p>
</li>
<li>
<p><strong>Labels</strong>: Use the <code>&lt;label&gt;</code> tag for form inputs, associated with the input via the <code>for</code> attribute that matches the input's <code>id</code>.</p>
</li>
<li>
<p><strong>Input Fields</strong>: Utilize various input types (e.g., text, email, password) to suit the required data.</p>
</li>
<li>
<p><strong>Buttons</strong>: Bootstrap provides <code>.btn</code> classes for buttons, with color options like <code>.btn-primary</code>, <code>.btn-success</code>, etc.</p>
</li>
</ol>
<hr />
<h3>Form Types</h3>
<p>Bootstrap 3 supports various types of input fields:</p>
<ol>
<li><strong>Text Inputs</strong></li>
<li><strong>Email Inputs</strong></li>
<li><strong>Password Inputs</strong></li>
<li><strong>Textarea</strong></li>
<li><strong>Checkboxes</strong></li>
<li><strong>Radio Buttons</strong></li>
<li><strong>Select Menus</strong></li>
</ol>
<h4>Example with Different Input Types</h4>
<div class="contain-inline-size rounded-md border-[0.5px] border-token-border-medium relative bg-token-sidebar-surface-primary dark:bg-gray-950">
<div class="flex items-center text-token-text-secondary px-4 py-2 text-xs font-sans justify-between rounded-t-md h-9 bg-token-sidebar-surface-primary dark:bg-token-main-surface-secondary">html</div>
<div class="sticky top-9 md:top-[5.75rem]">
<div class="absolute bottom-0 right-2 flex h-9 items-center">
<div class="flex items-center rounded bg-token-sidebar-surface-primary px-2 font-sans text-xs text-token-text-secondary dark:bg-token-main-surface-secondary">
<pre class="language-markup"><code>&lt;form&gt;
    &lt;div class="form-group"&gt;
        &lt;label for="inputEmail"&gt;Email address:&lt;/label&gt;
        &lt;input type="email" class="form-control" id="inputEmail" placeholder="Enter email"&gt;
    &lt;/div&gt;
    &lt;div class="form-group"&gt;
        &lt;label for="inputPassword"&gt;Password:&lt;/label&gt;
        &lt;input type="password" class="form-control" id="inputPassword" placeholder="Password"&gt;
    &lt;/div&gt;
    &lt;div class="checkbox"&gt;
        &lt;label&gt;&lt;input type="checkbox"&gt; Remember me&lt;/label&gt;
    &lt;/div&gt;
    &lt;div class="form-group"&gt;
        &lt;label for="select"&gt;Example select:&lt;/label&gt;
        &lt;select class="form-control" id="select"&gt;
            &lt;option&gt;Option 1&lt;/option&gt;
            &lt;option&gt;Option 2&lt;/option&gt;
            &lt;option&gt;Option 3&lt;/option&gt;
        &lt;/select&gt;
    &lt;/div&gt;
    &lt;button type="submit" class="btn btn-default"&gt;Submit&lt;/button&gt;
&lt;/form&gt;
</code></pre>
</div>
</div>
</div>
</div>
<hr />
<h3>Validation Styles</h3>
<p>Bootstrap 3 provides built-in classes to help style validation states for forms.</p>
<ul>
<li><strong><code>.has-success</code></strong>: Indicates a successful input.</li>
<li><strong><code>.has-warning</code></strong>: Indicates a warning for the user.</li>
<li><strong><code>.has-error</code></strong>: Indicates an error in the input.</li>
</ul>
<h4>Example of Validation Styles</h4>
<div class="contain-inline-size rounded-md border-[0.5px] border-token-border-medium relative bg-token-sidebar-surface-primary dark:bg-gray-950">
<div class="flex items-center text-token-text-secondary px-4 py-2 text-xs font-sans justify-between rounded-t-md h-9 bg-token-sidebar-surface-primary dark:bg-token-main-surface-secondary">html</div>
<div class="sticky top-9 md:top-[5.75rem]">
<div class="absolute bottom-0 right-2 flex h-9 items-center">
<div class="flex items-center rounded bg-token-sidebar-surface-primary px-2 font-sans text-xs text-token-text-secondary dark:bg-token-main-surface-secondary">
<pre class="language-markup"><code>&lt;form&gt;
    &lt;div class="form-group has-error"&gt;
        &lt;label for="inputError"&gt;Input with error:&lt;/label&gt;
        &lt;input type="text" class="form-control" id="inputError" placeholder="Input with error"&gt;
        &lt;span class="help-block"&gt;Error message here.&lt;/span&gt;
    &lt;/div&gt;
    &lt;div class="form-group has-success"&gt;
        &lt;label for="inputSuccess"&gt;Input with success:&lt;/label&gt;
        &lt;input type="text" class="form-control" id="inputSuccess" placeholder="Input with success"&gt;
    &lt;/div&gt;
    &lt;button type="submit" class="btn btn-primary"&gt;Submit&lt;/button&gt;
&lt;/form&gt;
</code></pre>
</div>
</div>
</div>
</div>
<hr />
<h3>&nbsp;</h3>
</div>
</div>
</div>
</div>
</div>
</div>
<h3>Conclusion</h3>
<p>Bootstrap 3 Forms make it easy to create visually appealing and responsive forms. With built-in classes and components, you can quickly set up forms that are user-friendly and consistent with the rest of your Bootstrap design. Whether you're gathering user information or handling submissions, Bootstrap 3 provides the tools you need for effective form management.</p>

Web Technology View More