HTML Tutorials

HTML - The class Attribute

Class Attribute in HTML

An HTML element's class names can be specified using the class attribute. JavaScript and CSS can both utilize classes to do particular actions on subsets of components and to style elements selectively.

Key Points:

  • Many Uses: An element can be the target of more than one class, delimited by spaces, that can be used with JavaScript or CSS.
  • Reusable: A valuable tool for implementing consistent style or actions, the same class can be applied to several items.

Example:


<div class="header highlight">
    <p class="highlight">This text can be styled distinctly.</p>
</div>
You might style these classes with CSS like this:

.highlight {
    background-color: yellow;
}
.header {
    font-size: 24px;
}

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HTML

Beginner 5 Hours

Class Attribute in HTML

An HTML element's class names can be specified using the class attribute. JavaScript and CSS can both utilize classes to do particular actions on subsets of components and to style elements selectively.

Key Points:

  • Many Uses: An element can be the target of more than one class, delimited by spaces, that can be used with JavaScript or CSS.
  • Reusable: A valuable tool for implementing consistent style or actions, the same class can be applied to several items.

Example:


<div class="header highlight">
    <p class="highlight">This text can be styled distinctly.</p>
</div>
You might style these classes with CSS like this:

.highlight {
    background-color: yellow;
}
.header {
    font-size: 24px;
}

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Frequently Asked Questions for HTML

  • HTML stands for HyperText Markup Language.
  • It is used to create the structure of web pages and web applications.
  • HTML defines elements such as headings, paragraphs, links, images, and other content.

  • Block-level elements (like <div>, <p>, <h1>) start on a new line and take full width.
  • Inline elements (like <span>, <a>, <strong>) stay within the flow of the text.
  • Understanding this helps with layout and styling.

  • A basic HTML page includes a <!DOCTYPE html> declaration, followed by <html>, <head>, and <body>.
  • The <head> section contains metadata like the title and links to stylesheets.
  • The <body> section contains all the visible content of the webpage.

  • The <meta> tag provides metadata such as page description, keywords, and author.
  • It helps browsers and search engines understand the content of the page.
  • One common use is specifying the character encoding: <meta charset="UTF-8">.

  • Forms collect user input using the <form> tag.
  • Inside a form, use <input>, <textarea>, <select>, and <button>.
  • The action attribute specifies where to send the form data.

  • The <label> tag defines a label for an input element.
  • It improves accessibility and allows users to click the label to focus the input.
    Example: <label for="email">Email:</label><input id="email">.

Comments in HTML are written between <!-- and -->.

Example:
<!-- This is a comment -->.
Comments are not displayed on the webpage and are used for documentation.

HTML entities are used to display reserved or special characters.

For example, &lt; displays < and &amp; displays &.
Use them to avoid confusion with actual HTML syntax.