Through pre-rendered HTML pages hosted on a server

By dynamically generating pages using JavaScript libraries

Via APIs that deliver content to multiple platforms

Through traditional templates with embedded content

A portfolio showcasing a designer’s work

An e-commerce website with frequent product updates

A landing page for a promotional event

A company’s informational blog without frequent changes

They allowed users to create, share, and interact with content

They improved website loading speed and efficiency

They enabled websites to be accessed offline

They introduced mobile-first design practices

Manually changing the HTML and CSS files

By retrieving data from a database and dynamically generating pages

Through a CDN that caches and updates content

Using a website builder to edit static content

Call to Action

Header and Navigation Menu

Sidebar

Footer

To improve website loading speed

To ensure compatibility across different devices and screen sizes

To enhance SEO rankings

To increase user interaction with multimedia content

Static websites are faster and easier to host, while dynamic websites allow content updates and user interaction

Dynamic websites are more secure than static websites

Static websites offer greater customization than dynamic websites

Dynamic websites do not require server-side scripting

They analyze user behavior to deliver personalized content and improve engagement.

They ensure faster website loading times.

They reduce the risk of cyberattacks by monitoring traffic.

They automate website maintenance and content updates.

Limited design flexibility

Slower page load times due to real-time data processing

Difficulty in managing multimedia content

Lack of user interaction capabilities

1. <h1> is the largest heading and is used only once on a webpage.

<h1> to <h6> decrease in importance and size from <h1> to <h6>.

All heading tags display content with the same size and importance.

1. <h6> is used to define the most important heading in a webpage.

<p><highlight>This is important.</highlight></p>

1. <p><b>Important text.</b></p>

1. <p><mark>This is important.</mark></p>

1. <p><mark>This is important.<mark></p>

<p style="font-color: blue;"><b>HTML</b> is fun!</p>

1. <p style="color: blue;">HTML is fun!</b></p>

1. <p style="color: blue;"> <b>HTML</b> is fun!</p>

1. <p style="text-color: blue;">HTML <b>is fun!</b></p>

<hide>This content is hidden.</hide>

1.  /* This content is hidden. */ 

1. <!-- This content is hidden. --> 

1. <invisible>This content is hidden.</invisible>

<q> is used for short quotes and adds quotation marks automatically, while <blockquote> is used for long quotes.

<q> is a container for short quotes, while <blockquote> requires CSS to style quotes.

<q> creates inline quotes, while <blockquote> creates block-level quotes with indentation.

Both elements behave identically but are used for different sources.

<p style="background: yellow; font-style: italic;">This is text</p>

<p style="background-color: yellow; font-style: italic;">This is text</p>

<p style="bg-color: yellow; italic;">This is text</p>

<p style="color: yellow; italic: true;">This is text</p>

<abbr title="HyperText Markup Language">HTML</abbr>

<cite title="HyperText Markup Language">HTML</cite>

<address title="HyperText Markup Language">HTML</address>

<bdo title="HyperText Markup Language">HTML</bdo>

H2O and 10^2 in a normal line

H₂O and 10² with subscript and superscript formatting

1.  H₂O and 10² as plain text 

An error message due to incorrect tag usage

<q>

<cite>

<blockquote>

<quote>

The href attribute should start with a / followed by the id of the target element.

You must use the name attribute instead of id for modern browsers.

The href attribute must contain # followed by the target element's id value.

Adding a bookmark requires a closing tag in the link.

background-attachment: scroll

background-repeat: repeat

background-size: cover

background-position: center

The browser will automatically use the image’s file name as a fallback.

The browser will display a broken image icon with no alternate text.

The browser will display a blank space where the image should be.

The browser will replace the image with a default placeholder.

<a href="about.html@section2">Jump to Section 2</a>

<a href="about.html/section2">Jump to Section 2</a>

<a href="about.html#section2">Jump to Section 2</a>

<a href="section2.about.html">Jump to Section 2</a>

background-size: contain

background-repeat: no-repeat

background-attachment: fixed

background-position: center

<!-- This is a comment --!>

1. <-- This is a comment --!>

<-- This is a comment -->

<!-- This is a comment -->

background: stretch url('image.jpg') 100% 100%;

background-image: url('image.jpg'); background-stretch: 100% 100%;

background-image: url('image.jpg'); background-size: 100% 100%;

background-img: url('image.jpg') stretch 100%;

The browser will load the image immediately, ignoring any errors.

If the image is too large, the browser automatically resizes it.

External images load faster than local images.

External images might fail if the server is down or the URL is invalid.

<a href="page.html" class="button">Click Me</a> with appropriate CSS styling

1. <button href="page.html">Click Me</button>

<input type="button" link="page.html" value="Click Me">

<a button="page.html">Click Me</a>

border-spacing

border-collapse

border-style

collapse-border

id is case-insensitive, while class is case-sensitive.

class can be used only once, while id can be used multiple times.

Both class and id can be used interchangeably.

class can be applied to multiple elements, while id must be unique in a document.

<a target="_blank"><img src="pic.jpg"></a>

<a href="https://example.com" target="_blank"><img src="pic.jpg" alt="Example"></a>

<img src="pic.jpg" href="https://example.com" target="_blank">

<a img="pic.jpg" href="https://example.com" target="_blank"></a>

1. <img src="pic.jpg" float="left"> 

1. <img src="pic.jpg" style="wrap-left"> 

1. <img src="pic.jpg" style="float:left;"> 

1. <img src="pic.jpg" text-align="left">

1. <td rowspan="2">

1. <td rowspan="3">

1. <th colspan="3">

1. <td colspan="3">

1. A small gap will appear between them due to inline spacing.

1. They will collapse and occupy the same space.

1. They will automatically stack on top of each other.

1. The second <div> will move to a new line.

1. The table headers will be striped instead of the rows.

1. The styling will be ignored by the browser.

1. All rows and columns will be styled uniformly.

1. The :nth-child() selector is invalid for <th> elements.

1. <iframe border="0">

1. <iframe style="border: none;">

1. <iframe no-border>

1. <iframe border="none">

1. <dl>

1. <ul>

1. <dt>

1. <dd>

1. <colgroup hide="true">

1. <col visibility="none">

1. <col style="visibility: collapse;">

1. <colgroup display="none">

1. rowspan="0" will merge the current cell with all cells below it.

1. rowspan merges the current cell with the specified number of rows below it. 

1. rowspan automatically calculates the number of rows to merge based on the content. 

1. Using rowspan on a <th> element will apply to all header rows.

1. class can be applied only once, while id can be reused.

1. id must be unique per document, while class can be applied multiple times.

1. Both id and class can be reused multiple times.

1. id can target multiple elements, while class targets a single element.

1. The full file path of the HTML document

1. A hash (#) followed by the ID name

1. The class name of the element

1. The name attribute of the element

1. They require an absolute URL in the src attribute

1. They always load faster than local images

1. They cannot be displayed unless embedded in a <figure> tag

1. They do not support alt attributes

1. The image becomes a clickable link

1. The image is hidden from the user

1. The image cannot have an alt attribute

1. The image will float automatically

1. background-size: contain;

1. background-attachment: fixed;

1. background-repeat: no-repeat;

1. background-align: center;

body

html

main

section

alt

1. title

href

id

1. background-size: cover;

1. background-repeat: no-repeat;

1. background-attachment: fixed;

1. background-position: center;

1. The image may stretch and become distorted

1. The image will repeat itself to fill the space

1. The image will be cropped

1. The image will maintain its original size

1. The background image repeats both horizontally and vertically

1. The background image does not repeat

1. The background image repeats horizontally only

1. The background image is centered and does not repeat

1. <img src="assets/image.jpg" alt="Sample">

1. <img src="/image.jpg" alt="Sample">

1. <img src="//assets/image.jpg" alt="Sample">

1. <img src="http://assets/image.jpg" alt="Sample">

1. It does not have a closing tag

1. The src attribute is required

1. The width attribute is required

1. The alt attribute is used for accessibility.

1. Prevents the background image from loading

1. Keeps the background image static while scrolling

1. Ensures the background image repeats across the entire page

1. Stretches the background image to fit the screen

1. The image is displayed with a placeholder

1. The browser automatically searches for a default image

1. The page does not load at all

1. A broken image icon appears

1. <a href="#bookmark">

1. <a href="page.html#bookmark">

1. <a href="bookmark.html#">

1. <a id="bookmark">

width: 100%; height: auto;

1. width: auto; height: 100%;

1. width: fixed; height: auto;

1. width: 500px; height: 500px;

1. <bookmark>

1. <h2 id="section1">

1. <a href="#section1">

1. <div id="#section1">

1. background-size: contain;

1. background-size: cover; background-attachment: fixed;

1. background-repeat: no-repeat; background-align: center;

background-stretch: full;

1. The <img> tag must have a title attribute to be clickable

1. The <img> tag must be wrapped inside an <a> tag to function as a link

1. The <img> tag automatically acts as a link if it has an alt attribute

1. The <img> tag cannot be used inside an <a> tag

src

href

name

target

border

1. border-width

outline

1. frame-style

rowspan

span

colspan

coldwidth

1. table:nth-child(even)

1. tr:nth-last-child(odd)

1. tr:alternate(even)

1. tr:nth-child(even)

1. display: inline;

1. position: relative;

1. justify-content: space-between;

1. display: inline-block;

1. <img src="image.jpg" width="300" height="200">

1. <img src="image.jpg" style="width: 300px; height: 200px;">

1. <img src="image.jpg" size="300x200">

1. <img src="image.jpg" alt="Image" width="50%">

1. To provide a caption for the image

1. To improve the image's resolution

1. To help the image for accessibility and in case of loading failure

1. To link the image to another webpage

1. frameborder="0"

1. border="none"

1. style="border: none;"

1. border="0"

1. It always centers content regardless of CSS settings.

1. It can span multiple rows but not columns.

1. It uses bold and centered text by default.

1. It cannot be styled using CSS.

1. <col style="visibility: hidden;">

1. <col span=”3”>

1. <col style="visibility: collapse;">

1. <colgroup display="none">

1. <colgroup collapse="yes">

1. Add border="0"

1. Use style="border-width: 0;"

1. Add style="border: none;"

1. iframe border-collapse: none;

1. document.getElementsByClassName("example");

1. document.getElementById("example");

1. document.querySelector(".example");

1. document.getElementsByTagName("example");

1. <list>

1. <dl>

1. <dt>

1. <dd>

padding

margin

1. width

1. border-spacing

1. To define a group of rows.

1. To style or apply attributes to specific columns of a table.

1. To merge multiple cells into one.

1. To remove spacing between table cells.

1. <ol>

1. <li>

1. <dl>

1. <ul>

1. <dt>

1. <dd>

1. <dl>

1. <li>

1. <ol num="3">

1. <ol begin="3">

1. <ol start="3">

1. <ol value="3">

1. display: flex;

1. position: grid;

1. display: grid;

1. grid-template: auto;

Nest an <ul> or <ol> directly inside an <li> element.

Place nested lists inside a <div> element for structure.

Use <li> to enclose both parent and child lists.

Add a nested <ul> or <ol> inside an <li> element.

1. The browser ignores the duplicate IDs and applies styles to the first one only.

1. All elements with the same id will get the specified styles, but JavaScript will only access the first one.

1. It triggers a JavaScript error, preventing the page from loading correctly.

1. It creates an invalid HTML document, which may cause unpredictable results.

1. id is case-insensitive, while class is case-sensitive.

1. class can be used only once, while id can be used multiple times.

1. Both class and id can be used interchangeably.

1. class can be applied to multiple elements, while id must be unique in a document.