📄 Day 5 — HTML Forms & User Input
Welcome back! 🎉 In today’s lesson, you’ll learn one of the most powerful and essential parts of web development — **HTML Forms**. Forms allow users to send information to the website — whether it’s logging in, searching, or filling out a contact page. By mastering forms, you’ll enable real interaction between your site and its visitors.
🧩 1️⃣ What is a Form?
An HTML form collects data from users and sends it to a server (or script) for processing.
All form elements are wrapped inside the <form> tag.
<form action="/submit" method="post"> <label>Name:</label> <input type="text" name="username"> <input type="submit" value="Send"> </form>
🧠 action — where the form data is sent
🧠 method — how the data is sent (GET or POST)
📥 2️⃣ Common Input Types
The <input> tag is the most used form element. It supports multiple types:
<form> <label>Name:</label> <input type="text" name="fullname"><br><br> <label>Email:</label> <input type="email" name="email"><br><br> <label>Password:</label> <input type="password" name="pwd"><br><br> <label>Age:</label> <input type="number" name="age"><br><br> <input type="submit" value="Register"> </form>
Each type creates a different kind of field: text, email, password, number, checkbox, radio, color picker, and many more.
📋 3️⃣ Labels & Accessibility
The <label> tag improves accessibility by linking text to a form control.
<label for="email">Email:</label> <input type="email" id="email" name="email">
When users click the label, it focuses the corresponding input — great for UX and accessibility.
🔘 4️⃣ Checkboxes & Radio Buttons
Use checkboxes for multiple selections and radio buttons for one choice among many.
<form> <p>Select your skills:</p> <input type="checkbox" name="skills" value="HTML"> HTML <input type="checkbox" name="skills" value="CSS"> CSS <input type="checkbox" name="skills" value="JS"> JavaScript <p>Select gender:</p> <input type="radio" name="gender" value="Male"> Male <input type="radio" name="gender" value="Female"> Female </form>
📤 5️⃣ Dropdowns & Textareas
Dropdowns (<select>) and textareas (<textarea>) are perfect for larger inputs or lists.
<form>
<label>Favorite Language:</label>
<select name="language">
<option>HTML</option>
<option>CSS</option>
<option>JavaScript</option>
</select>
<br><br>
<label>Your Feedback:</label><br>
<textarea name="message" rows="4" cols="40"></textarea>
</form>
🧱 6️⃣ Fieldset & Legend
Group related inputs together using <fieldset> and <legend>.
<fieldset> <legend>Contact Information</legend> <label>Name:</label> <input type="text"><br><br> <label>Phone:</label> <input type="tel"> </fieldset>
🧠 7️⃣ Practice Task
- Build a registration form with name, email, and password fields.
- Add radio buttons for gender selection.
- Include a dropdown for choosing a course.
- Use a textarea for user feedback.
🧮 Mini Quiz
- Q1: Which attribute specifies where the form data is sent?
- Q2: What’s the difference between checkbox and radio button?
- Q3: What tag is used to group form fields together?
🎯 Summary
Today, you learned how to build interactive forms and collect user input using various input types and attributes. These are the backbone of every interactive website — from contact forms to login systems. In the next lesson, we’ll go deeper into **input types and validation** to enhance user experience.
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