Conteúdo do Curso
HTML Essentials
HTML Essentials
3. Images and Media
Form Input and Label Elements
As we have seen before, the most powerful element of a form is input. This element expects data from the user. Let’s focus on it.
Types of Input
Text Input
Designed for short textual data input, such as usernames, email addresses, or brief messages.
Password Input
Used for password input, where characters are masked for security purposes. Ensures privacy by hiding the entered characters.
Email Input
Used for collecting email addresses from users. Performs client-side validation to ensure the entered value is valid in email format.
Telephone Input
Used for collecting telephone numbers from users. Allows users to input phone numbers in various formats, including international numbers.
Number Input
Used for collecting numerical data from users. Provides a numeric keypad on mobile devices for easy input.
Checkbox
Allows users to select one or more options from a list of choices. Suitable for scenarios where multiple selections are allowed, such as selecting multiple items from a list or agreeing to terms and conditions.
Radio Button
Allows users to select one option from a list of mutually exclusive choices. Suitable for scenarios where only one option should be selected, such as gender selection or choosing a payment method.
File Input
Allows users to upload files from their device, choose from their local filesystem, and submit them with form data. This feature is particularly useful when attaching documents or images.
Date Input, Time Input, and DateTime Input
Allows users to input dates, times, or both. Provides user-friendly interfaces for selecting dates and times. Useful for capturing dates of birth, appointment times, or event schedules.
Example: Input something into the fields, and they will suggest various options. Don't worry; no data will be collected.
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You may have noticed that filling out the form is not very convenient when you do not understand what is being asked for in each field. That's why the labels come to our aid.
Labels
Labels (<label>
) are essential for linking text labels with form input elements, enhancing accessibility and user-friendliness. It's crucial that the for
attribute of the <label>
tag matches the id
attribute of the associated input
element.
Example:
In the example above:
- When you click the
Username:
label, it will automatically focus on the corresponding input field; - The
label
andinput
are linked together using thefor
andid
attributes, respectively; - Both
for
andid
attributes have the same value (username
).
Let's make filling in the form easier by adding labels to the inputs from the previous example.
Example:
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Video Tutorial
Tudo estava claro?