Building the User Interface by Using HTML5: Organization ... - server

84 | Lesson 3
unordered lists. Each item in an ordered list is marked by a number or letter. An unordered
list is a bulleted list.
• Developers use Web forms as the interface for collecting information from Web site and
client application users. HTML input elements serve to build a form’s interface and ensure
that information is collected from users consistently.
• Most Web forms, or at least many fields in most forms, require specifically formatted
input. The new HTML5 form and input attributes are intuitive, easy to use, and replace a
lot of scripting that was required in HTML 4.01 and previous versions.
• Validation ensures that information entered in an input field of a Web form is in the correct
format and usable before sending the data to the server.
• HTML5 provides new attributes that validate Web form fields as users are entering data
or when they click the submit button. The attributes include required, email, and pattern,
among others.
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■ Knowledge Assessment
Fill in the Blank
Complete the following sentences by writing the correct word or words in the blanks provided.
1. An HTML contains rows and columns, and is used to display information
in a grid format.
2. Class and ID are attributes, which means they can be used with any
HTML element.
3. An list orders the list entries using numbers, by default.
4. An list displays list entries in a bulleted list.
5. The HTML5 element presents a list (or menu) of commands, usually
with buttons.
6. Form is the information a user enters into fields in a Web or client
application.
7. The attribute requires information in a field when the form is submitted.
8. text is displayed inside an input field when the field is empty. It helps
users understand the type of information they should enter or select.
9. is the process of verifying that information entered or captured in a
form is in the correct format and usable before sending the data to the server.
10. The attribute moves the focus to a particular input field when a Web
page loads.
Multiple Choice
Circle the letter that corresponds to the best answer.
1. Which HTML5 element defines subdivisions in a document, such as chapters, parts of a
thesis, or parts of a Web page whose content is distinct from each other?
a. aside
b. section
c. header
d. article