Form validation styles in Bootsrap - Mini Project: Build & Apply

Form Validation Styles with Bootstrap

📖 Scenario: You are creating a simple web form for users to enter their name and email. You want to show clear validation styles using Bootstrap so users know if their input is correct or needs fixing.

🎯 Goal: Build a web form with two input fields: Name and Email. Use Bootstrap classes to show valid and invalid styles for these fields.

📋 What You'll Learn

Create a form with two input fields: one for name and one for email.

Add Bootstrap classes to show valid input style on the name field.

Add Bootstrap classes to show invalid input style on the email field.

Include appropriate aria-label attributes for accessibility.

Use semantic HTML5 elements and ensure the form is responsive.

💡 Why This Matters

🌍 Real World

Forms are everywhere on websites for user input. Showing clear validation styles helps users fix mistakes quickly and improves user experience.

💼 Career

Web developers often use Bootstrap or similar frameworks to build accessible, user-friendly forms that work well on all devices.

1

Create the basic HTML form structure

Create a <form> element with two input fields inside it. The first input should have type="text" and id="nameInput". The second input should have type="email" and id="emailInput". Add aria-label="Name input field" to the name input and aria-label="Email input field" to the email input.

Bootsrap

Need a hint?

Use two <input> tags inside the <form>. Make sure to add the aria-label attributes exactly as shown.

2

Add Bootstrap classes for form control styling

Add the Bootstrap class form-control to both input fields to style them properly.

Bootsrap

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Need a hint?

Add class="form-control" inside each <input> tag.

3

Apply valid and invalid validation styles

Add the Bootstrap class is-valid to the name input field to show it as valid. Add the class is-invalid to the email input field to show it as invalid.

Bootsrap

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Need a hint?

Append is-valid to the name input's class and is-invalid to the email input's class.

4

Add feedback messages for accessibility

Below the name input, add a <div> with class valid-feedback containing the text Name looks good!. Below the email input, add a <div> with class invalid-feedback containing the text Please enter a valid email..

Bootsrap

Need a hint?

Use <div> elements with the correct Bootstrap feedback classes right after each input.