HTML Colors

Chapter 18

Web Safe Colors?

Some years ago, when computers supported max 256 different colors, a list of 216 "Web Safe Colors" was suggested as a Web standard, reserving 40 fixed system colors.

The 216 cross-browser color palette was created to ensure that all computers would display the colors correctly when running a 256 color palette.

000000	000033	000066	000099	0000CC	0000FF
003300	003333	003366	003399	0033CC	0033FF
006600	006633	006666	006699	0066CC	0066FF
009900	009933	009966	009999	0099CC	0099FF
00CC00	00CC33	00CC66	00CC99	00CCCC	00CCFF
00FF00	00FF33	00FF66	00FF99	00FFCC	00FFFF
330000	330033	330066	330099	3300CC	3300FF
333300	333333	333366	333399	3333CC	3333FF
336600	336633	336666	336699	3366CC	3366FF
339900	339933	339966	339999	3399CC	3399FF
33CC00	33CC33	33CC66	33CC99	33CCCC	33CCFF
33FF00	33FF33	33FF66	33FF99	33FFCC	33FFFF
660000	660033	660066	660099	6600CC	6600FF
663300	663333	663366	663399	6633CC	6633FF
666600	666633	666666	666699	6666CC	6666FF
669900	669933	669966	669999	6699CC	6699FF
66CC00	66CC33	66CC66	66CC99	66CCCC	66CCFF
66FF00	66FF33	66FF66	66FF99	66FFCC	66FFFF
990000	990033	990066	990099	9900CC	9900FF
993300	993333	993366	993399	9933CC	9933FF
996600	996633	996666	996699	9966CC	9966FF
999900	999933	999966	999999	9999CC	9999FF
99CC00	99CC33	99CC66	99CC99	99CCCC	99CCFF
99FF00	99FF33	99FF66	99FF99	99FFCC	99FFFF
CC0000	CC0033	CC0066	CC0099	CC00CC	CC00FF
CC3300	CC3333	CC3366	CC3399	CC33CC	CC33FF
CC6600	CC6633	CC6666	CC6699	CC66CC	CC66FF
CC9900	CC9933	CC9966	CC9999	CC99CC	CC99FF
CCCC00	CCCC33	CCCC66	CCCC99	CCCCCC	CCCCFF
CCFF00	CCFF33	CCFF66	CCFF99	CCFFCC	CCFFFF
FF0000	FF0033	FF0066	FF0099	FF00CC	FF00FF
FF3300	FF3333	FF3366	FF3399	FF33CC	FF33FF
FF6600	FF6633	FF6666	FF6699	FF66CC	FF66FF
FF9900	FF9933	FF9966	FF9999	FF99CC	FF99FF
FFCC00	FFCC33	FFCC66	FFCC99	FFCCCC	FFCCFF
FFFF00	FFFF33	FFFF66	FFFF99	FFFFCC	FFFFFF

HTML Form Creation

Chapter 17

HTML Forms

HTML forms are used to pass data to a server.

An HTML form can contain input elements like text fields, checkboxes, radio-buttons, submit buttons and more. A form can also contain select lists, textarea, fieldset, legend, and label elements.

The <form> tag is used to create an HTML form:

<form> . input elements . </form>

---

HTML Forms - The Input Element

The most important form element is the <input> element.

The <input> element is used to select user information.

An <input> element can vary in many ways, depending on the type attribute. An <input> element can be of type text field, checkbox, password, radio button, submit button, and more.

The most common input types are described below.

---

Text Fields

<input type="text"> defines a one-line input field that a user can enter text into: <form> First name: <input type="text" name="firstname"><br> Last name: <input type="text" name="lastname"> </form>

How the HTML code above looks in a browser:

First name: 
Last name: 

---

Password Field

<input type="password"> defines a password field: <form> Password: <input type="password" name="pwd"> </form>

How the HTML code above looks in a browser:

Password: 

---

Radio Buttons

<input type="radio"> defines a radio button. Radio buttons let a user select ONLY ONE of a limited number of choices:

<form> <input type="radio" name="sex" value="male">Male<br> <input type="radio" name="sex" value="female">Female </form>

How the HTML code above looks in a browser:

Male
Female

---

Checkboxes

<input type="checkbox"> defines a checkbox. Checkboxes let a user select ZERO or MORE options of a limited number of choices.

<form> <input type="checkbox" name="vehicle" value="Bike">I have a bike<br> <input type="checkbox" name="vehicle" value="Car">I have a car  </form>

How the HTML code above looks in a browser:

I have a bike
I have a car

---

Submit Button

<input type="submit"> defines a submit button.

A submit button is used to send form data to a server. The data is sent to the page specified in the form's action attribute. The file defined in the action attribute usually does something with the received input:

<form name="input" action="html_form_action.asp" method="get"> Username: <input type="text" name="user"> <input type="submit" value="Submit"> </form>

How the HTML code above looks in a browser:

Username: 

If you type some characters in the text field above, and click the "Submit" button, the browser will send your input to a page called "html_form_action.asp". The page will show you the received input.

HTML Layout

Chapter 16

HTML List Tags

Tag	Description
<ol>	Defines an ordered list
<ul>	Defines an unordered list
<li>	Defines a list item
<dl>	Defines a definition list
<dt>	Defines an item in a definition list
<dd>	Defines a description of an item in a definition list

HTML Layout - Using <div> Elements

Example :17


<html>
<body>

<div id="container" style="width:500px">

<div id="header" style="background-color:#FFA500;">
<h1 style="margin-bottom:0;">Main Title of Web Page</h1></div>

<div id="menu" style="background-color:#FFD700;height:200px;width:100px;float:left;">
<b>Menu</b><br>
HTML<br>
CSS<br>
JavaScript</div>

<div id="content" style="background-color:#EEEEEE;height:200px;width:400px;float:left;">
Content goes here</div>

<div id="footer" style="background-color:#FFA500;clear:both;text-align:center;">
Copyright © AtoZ4tutorials</div>

</div>

</body>
</html>

Output is:

Main Title of Web Page

Menu
HTML
CSS
JavaScript

Content goes here

Copyright © AtoZ4tutorials

HTML Nested list and Definition list

Chapter 15

Example 15:

<html>

<body>

<h4>A nested List:</h4>

<ul>

  <li>Coffee</li>

  <li>Tea

    <ul>

    <li>Black tea</li>

    <li>Green tea

      <ul>

      <li>China</li>

      <li>Africa</li>

      </ul>

    </li>

    </ul>

  </li>

  <li>Milk</li>

</ul>

</body>

</html>

Output is:

A nested List:

• Coffee
• Tea
  • Black tea
  • Green tea
    • China
    • Africa
• Milk

HTML Definition Lists

A definition list is a list of items, with a description of each item.

The <dl> tag defines a definition list.

The <dl> tag is used in conjunction with <dt> (defines the item in the list) and <dd> (describes the item in the list):

Example :16

<html>
<body>

<h4>A Definition List:</h4>
<dl>
  <dt>Coffee</dt>
  <dd>- black hot drink</dd>
  <dt>Milk</dt>
  <dd>- white cold drink</dd>
</dl>

</body>
</html>

Output is:

A Definition List:

Coffee

- black hot drink

Milk

- white cold drink

HTML Unordered List

Chapter 14

An unordered list starts with the <ul> tag. Each list item starts with the <li> tag.

The list items are marked with bullets (typically small black circles).

The UnOrdered list Output like

• Coffee
• Milk

There are different types in UnOrdered list

1. Disc Bullet list
2. Circle Bullet list
3. Square Bullet list

Example :14

<html>

<body>

<h4>Disc bullets list:</h4>

<ul style="list-style-type:disc">

 <li>Apples</li>

 <li>Bananas</li>

 <li>Lemons</li>

 <li>Oranges</li>

</ul>  

<h4>Circle bullets list:</h4>

<ul style="list-style-type:circle">

 <li>Apples</li>

 <li>Bananas</li>

 <li>Lemons</li>

 <li>Oranges</li>

</ul>  

<h4>Square bullets list:</h4>

<ul style="list-style-type:square">

 <li>Apples</li>

 <li>Bananas</li>

 <li>Lemons</li>

 <li>Oranges</li>

</ul>

</body>

</html>

Output is :

Disc bullets list:

• Apples
• Bananas
• Lemons
• Oranges

Circle bullets list:

• Apples
• Bananas
• Lemons
• Oranges

Square bullets list:

• Apples
• Bananas
• Lemons
• Oranges

HTML Order list

Chapter 13

An ordered list starts with the <ol> tag. Each list item starts with the <li> tag.

The list items are marked with numbers.

The Ordered list Output like

1. Coffee
2. Milk

There are different types in Ordered list

1. Numbered list
2. Letters list
3. Lowercase letters
4. Roman numbers
5. Lowercase Roman  numbers

Example :13

<html>

<body>

<h4>Numbered list:</h4>

<ol>

 <li>Apples</li>

 <li>Bananas</li>

 <li>Lemons</li>

 <li>Oranges</li>

</ol>  

<h4>Letters list:</h4>

<ol type="A">

 <li>Apples</li>

 <li>Bananas</li>

 <li>Lemons</li>

 <li>Oranges</li>

</ol>  

<h4>Lowercase letters list:</h4>

<ol type="a">

 <li>Apples</li>

 <li>Bananas</li>

 <li>Lemons</li>

 <li>Oranges</li>

</ol>  

<h4>Roman numbers list:</h4>

<ol type="I">

 <li>Apples</li>

 <li>Bananas</li>

 <li>Lemons</li>

 <li>Oranges</li>

</ol>  

<h4>Lowercase Roman numbers list:</h4>

<ol type="i">

 <li>Apples</li>

 <li>Bananas</li>

 <li>Lemons</li>

 <li>Oranges</li>

</ol>  

</body>

</html>

Output is:

Numbered list:

1. Apples
2. Bananas
3. Lemons
4. Oranges

Letters list:

1. Apples
2. Bananas
3. Lemons
4. Oranges

Lowercase letters list:

1. Apples
2. Bananas
3. Lemons
4. Oranges

Roman numbers list:

1. Apples
2. Bananas
3. Lemons
4. Oranges

Lowercase Roman numbers list:

1. Apples
2. Bananas
3. Lemons
4. Oranges

HTML Table Tag 4

Chapter 12

HTML Table cellpadding & cellspacing

For cellpadding 

Example 11:

<html>

<body>

<h4>Without cellpadding:</h4>

<table border="1">

<tr>

  <td>First</td>

  <td>Row</td>

</tr>   

<tr>

  <td>Second</td>

  <td>Row</td>

</tr>

</table>

<h4>With cellpadding:</h4>

<table border="1" 

cellpadding="10">

<tr>

  <td>First</td>

  <td>Row</td>

</tr>   

<tr>

  <td>Second</td>

  <td>Row</td>

</tr>

</table>

</body>

</html>

Output is:

Without cellpadding:

First	Row
Second	Row

With cellpadding:

First	Row
Second	Row

For cellspacing

Example :12

<html>

<body>

<h4>Without cellspacing:</h4>

<table border="1">

<tr>

  <td>First</td>

  <td>Row</td>

</tr>   

<tr>

  <td>Second</td>

  <td>Row</td>

</tr>

</table>

<h4>With cellspacing:</h4>

<table border="1" 

cellspacing="20">

<tr>

  <td>First</td>

  <td>Row</td>

</tr>   

<tr>

  <td>Second</td>

  <td>Row</td>

</tr>

</table>

</body>

</html>

Output is:

Without cellspacing:

First	Row
Second	Row

With cellspacing:

First	Row
Second	Row