HTML#

#

hello.html#

<!doctype html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>HTML5 Boilerplate</title>
  </head>
  <body>
    <h1>Hello world, hello CheatSheets.zip!</h1>
  </body>
</html>

Or try it out in the jsfiddle

Comment#

<!-- this is a comment -->

<!--
    Or you can comment out a
    large number of lines.
-->

Paragraph#

<p>I'm from CheatSheets.zip</p>
<p>Share quick reference cheat sheet.</p>

See: The Paragraph element

Image Tag#

<img
  loading="lazy"
  src="https://xxx.png"
  alt="Describe image here"
  width="400"
  height="400"
/>

src

Required, Image location (URL | Path)

alt

Describe of the image

width

Width of the image

height

Height of the image

loading

How the browser should load

See: The Image Embed element

Text Formatting Tags#

<b>Bold Text</b>
<strong>This text is important</strong>
<i>Italic Text</i>
<em>This text is emphasized</em>
<u>Underline Text</u>
<pre>Pre-formatted Text</pre>
<code>Source code</code>
<del>Deleted text</del>
<mark>Highlighted text (HTML5)</mark>
<ins>Inserted text</ins>
<sup>Makes text superscripted</sup>
<sub>Makes text subscripted</sub>
<small>Makes text smaller</small>
<kbd>Ctrl</kbd>
<blockquote>Text Block Quote</blockquote>

Headings#

<h1>This is Heading 1</h1>
<h2>This is Heading 2</h2>
<h3>This is Heading 3</h3>
<h4>This is Heading 4</h4>
<h5>This is Heading 5</h5>
<h6>This is Heading 6</h6>

You should only have one h1 on your page

Section Divisions#

<div></div>

Division or Section of Page Content

<span></span>

Section of text within other content

<p></p>

Paragraph of Text

<br>

Line Break

<hr>

Basic Horizontal Line

These are the tags used to divide your page up into sections

Inline Frame#

<iframe
  title="New York"
  width="342"
  height="306"
  id="gmap_canvas"
  src="https://maps.google.com/maps?q=2880%20Broadway,%20New%20York&t=&z=13&ie=UTF8&iwloc=&output=embed"
  scrolling="no"
>
</iframe>

↓ Preview#

See: The Inline Frame element

JavaScript in HTML#

<script type="text/javascript">
  let text = 'Hello CheatSheets.zip';
  alert(text);
</script>

External JavaScript#

<body>
  ...

  <script src="app.js"></script>
</body>

CSS in HTML#

<style type="text/css">
  h1 {
    color: purple;
  }
</style>

External stylesheet#

<head>
  ...
  <link rel="stylesheet" href="style.css" />
</head>

HTML5 Tags#

Document#

<body>
  <header>
    <nav>...</nav>
  </header>
  <main>
    <h1>CheatSheets.zip</h1>
  </main>
  <footer>
    <p>©2023 CheatSheets.zip</p>
  </footer>
</body>

Header Navigation#

<header>
  <nav>
    <ul>
      <li><a href="#">Edit Page</a></li>
      <li><a href="#">Twitter</a></li>
      <li><a href="#">Facebook</a></li>
    </ul>
  </nav>
</header>

HTML5 Tags#

article

Content that’s independent

aside

Secondary content

audio

Embeds a sound, or an audio stream

bdi

The Bidirectional Isolate element

canvas

Draw graphics via JavaScript

data

Machine readable content

datalist

A set of pre-defined options

details

Additional information

dialog

A dialog box or sub-window

embed

Embeds external application

figcaption

A caption or legend for a figure

figure

A figure illustrated

footer

Footer or least important

header

Masthead or important information

main

The main content of the document

mark

Text highlighted

meter

A scalar value within a known range

nav

A section of navigation links

output

The result of a calculation

picture

A container for multiple image sources

progress

The completion progress of a task

rp

Provides fall-back parenthesis

rt

Defines the pronunciation of character

ruby

Represents a ruby annotation

section

A group in a series of related content

source

Resources for the media elements

summary

A summary for the <details> element

template

Defines the fragments of HTML

time

A time or date

track

Text tracks for the media elements

video

Embeds video

wbr

A line break opportunity

HTML5 Video#

<video controls="" width="100%">
  <source
    src="https://interactive-examples.mdn.mozilla.net/media/cc0-videos/flower.mp4"
    type="video/mp4"
  />
  Sorry, your browser doesn't support embedded videos.
</video>

↓ Preview#

HTML5 Audio#

<audio
  controls
  src="https://interactive-examples.mdn.mozilla.net/media/cc0-audio/t-rex-roar.mp3"
>
  Your browser does not support the audio element.
</audio>

↓ Preview#

HTML5 Ruby#

<ruby><rp>(</rp><rt>hàn</rt><rp>)</rp><rp>(</rp><rt></rt><rp>)</rp>
</ruby>

↓ Preview#

(hàn)()

HTML5 kdi#

<ul>
  <li>User <bdi>hrefs</bdi>: 60 points</li>
  <li>User <bdi>jdoe</bdi>: 80 points</li>
  <li>User <bdi>إيان</bdi>: 90 points</li>
</ul>

↓ Preview#

  • User hrefs: 60 points
  • User jdoe: 80 points
  • User إيان: 90 points

HTML5 progress#

<progress value="50" max="100"></progress>

HTML5 mark#

<p>I Love <mark>CheatSheets.zip</mark></p>

I Love CheatSheets.zip

HTML Tables#

Table Example#

<table>
  <thead>
    <tr>
      <td>name</td>
      <td>age</td>
    </tr>
  </thead>
  <tbody>
    <tr>
      <td>Roberta</td>
      <td>39</td>
    </tr>
    <tr>
      <td>Oliver</td>
      <td>25</td>
    </tr>
  </tbody>
</table>

HTML Table Tags#

Tag

Description

<table>

Defines a table

<th>

Defines a header cell in a table

<tr>

Defines a row in a table

<td>

Defines a cell in a table

<caption>

Defines a table caption

<colgroup>

Defines a group of columns

<col>

Defines a column within a table

<thead>

Groups the header content

<tbody>

Groups the body content

<tfoot>

Groups the footer content

<td> Attributes#

Attribute

Description

colspan

Number of columns a cell should span

headers

One or more header cells a cell is related to

rowspan

Number of rows a cell should span

See: td#Attributes

<th> Attributes#

Attribute

Description

colspan

Number of columns a cell should span

headers

One or more header cells a cell is related to

rowspan

Number of rows a cell should span

abbr

Description of the cell’s content

scope

The header element relates to

See: th#Attributes

HTML Lists#

Unordered list#

<ul>
  <li>I'm an item</li>
  <li>I'm another item</li>
  <li>I'm another item</li>
</ul>

See: The Unordered List element

Ordered list#

<ol>
  <li>I'm the first item</li>
  <li>I'm the second item</li>
  <li>I'm the third item</li>
</ol>

See: The Ordered List element

Definition list#

<dl>
  <dt>A Term</dt>
  <dd>Definition of a term</dd>
  <dt>Another Term</dt>
  <dd>Definition of another term</dd>
</dl>

See: The Description List element

HTML Forms#

Form tags#

<form method="POST" action="api/login">
  <label for="mail">Email: </label>
  <input type="email" id="mail" name="mail" />
  <br />
  <label for="pw">Password: </label>
  <input type="password" id="pw" name="pw" />
  <br />
  <input type="submit" value="Login" />
  <br />
  <input type="checkbox" id="ck" name="ck" />
  <label for="ck">Remember me</label>
</form>

↓ Preview#




The HTML <form> element is used to collect and send information to an external source.

Form Attribute#

Attribute

Description

name

Name of form for scripting

action

URL of form script

method

HTTP method, POST / GET (default)

enctype

Media type, See enctype

onsubmit

Runs when the form was submit

onreset

Runs when the form was reset

Label tags#

<!-- Nested label -->
<label
  >Click me
  <input type="text" id="user" name="name" />
</label>

<!-- 'for' attribute -->
<label for="user">Click me</label>
<input id="user" type="text" name="name" />

for in a label references an input’s id attribute

Input tags#

<label for="Name">Name:</label> <input type="text" name="Name" id="" />

↓ Preview#

See: HTML input Tags

Textarea tags#

<textarea rows="2" cols="30" name="address" id="address"></textarea>

↓ Preview#

Textarea is a multiple-line text input control

Radio Buttons#

<input type="radio" name="gender" id="m" />
<label for="m">Male</label>
<input type="radio" name="gender" id="f" />
<label for="f">Female</label>

↓ Preview#

Radio buttons are used to let the user select exactly one

Checkboxes#

<input type="checkbox" name="s" id="soc" />
<label for="soc">Soccer</label>
<input type="checkbox" name="s" id="bas" />
<label for="bas">Baseball</label>

↓ Preview#

Checkboxes allows the user to select one or more

Select tags#

<label for="city">City:</label>
<select name="city" id="city">
  <option value="1">Sydney</option>
  <option value="2">Melbourne</option>
  <option value="3">Cromwell</option>
</select>

↓ Preview#

A select box is a dropdown list of options

Fieldset tags#

<fieldset>
  <legend>Your favorite monster</legend>
  <input type="radio" id="kra" name="m" />
  <label for="kraken">Kraken</label><br />
  <input type="radio" id="sas" name="m" />
  <label for="sas">Sasquatch</label>
</fieldset>

↓ Preview#

Your favorite monster

Datalist tags(HTML5)#

<label for="b">Choose a browser: </label>
<input list="list" id="b" name="browser" />
<datalist id="list">
  <option value="Chrome"></option>
  <option value="Firefox"></option>
  <option value="Internet Explorer"></option>
  <option value="Opera"></option>
  <option value="Safari"></option>
  <option value="Microsoft Edge"></option>
</datalist>

↓ Preview#

Submit and Reset Buttons#

<form action="register.php" method="post">
  <label for="foo">Name:</label>
  <input type="text" name="name" id="foo" />
  <input type="submit" value="Submit" />
  <input type="reset" value="Reset" />
</form>

↓ Preview#

Submit the data to server; Reset to default values

HTML input Tags#

Input Attributes#

The input tag is an empty element, identifying the particular type of field information to obtain from a user.

<input type="text" name="?" value="?" minlength="6" required />

-

type="…"

The type of data that is being input

value="…"

Default value

name="…"

Used to describe this data in the HTTP request

id="…"

Unique identifier that other HTML elements

readonly

Stops the user from modifying

disabled

Stops any interaction

checked

The radio or checkbox select or not

required

Being compulsory, See required

placeholder="…"

Adds a temporary, See ::placeholder

autocomplete="off"

Disable auto completion

autocapitalize="none"

Disable auto capitalization

inputmode="…"

Display a specific keyboard, See inputmode

list="…"

The id of an associated datalist

maxlength="…"

Maximum number of characters

minlength="…"

Minimum number of characters

min="…"

Minimum numerical value on range & number

max="…"

Maximum numerical value on range & number

step="…"

How the number will increment in range & number

pattern="…"

Specifies a Regular expression, See pattern

autofocus

Be focused

spellcheck

Perform spell checking

multiple

Whether to allow multiple values

accept=""

Expected file type in file upload controls

Also see: Attributes for the <input> element

Input types#

type="checkbox"

type="radio"

type="file"

type="hidden"

type="text"

type="password"

type="image"

type="reset"

type="button"

type="submit"

New Input Types in HTML5#

type="color"

type="date"

type="time"

type="month"

type="datetime-local"

type="week"

type="email"

type="tel"

type="url"

type="number"

type="search"

type="range"

Input CSS selectors#

input:focus

When its keyboard focused

HTML meta Tags#

Meta tags#

The meta tag describes meta data within an HTML document. It explains additional material about the HTML.

<meta charset="utf-8" />
<!-- title -->
<title>···</title>
<meta property="og:title" content="···" />
<meta name="twitter:title" content="···" />

<!-- url -->
<link rel="canonical" href="https://···" />
<meta property="og:url" content="https://···" />
<meta name="twitter:url" content="https://···" />

<!-- description -->
<meta name="description" content="···" />
<meta property="og:description" content="···" />
<meta name="twitter:description" content="···" />

<!-- image -->
<meta property="og:image" content="https://···" />
<meta name="twitter:image" content="https://···" />

<!-- ua -->
<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1" />

<!-- viewport -->
<meta name="viewport" content="width=device-width" />
<meta name="viewport" content="width=1024" />

Open Graph#

<meta property="og:type" content="website" />
<meta property="og:locale" content="en_CA" />
<meta property="og:title" content="HTML cheatsheet" />
<meta property="og:url" content="https://cheatsheets.zip/html" />
<meta property="og:image" content="https://xxx.com/image.jpg" />
<meta property="og:site_name" content="Name of your website" />
<meta property="og:description" content="Description of this page" />

Used by Facebook, Instagram, Pinterest, LinkedIn, etc.

Twitter Cards#

<meta name="twitter:card" content="summary" />
<meta name="twitter:site" content="@FechinLi" />
<meta name="twitter:title" content="HTML cheatsheet" />
<meta name="twitter:url" content="https://cheatsheets.zip/html" />
<meta name="twitter:description" content="Description of this page" />
<meta name="twitter:image" content="https://xxx.com/image.jpg" />

See: Twitter Card Documentation

Geotagging#

<meta name="ICBM" content="45.416667,-75.7" />
<meta name="geo.position" content="45.416667;-75.7" />
<meta name="geo.region" content="ca-on" />
<meta name="geo.placename" content="Ottawa" />

See: Geotagging

Also see#