APU Solution

Wednesday, February 8, 2017

HTML Basic

HTML Documents

All HTML documents must start with a document type declaration: <!DOCTYPE html>.

The HTML document itself begins with <html> and ends with </html>.

The visible part of the HTML document is between <body> and </body>.

Example:

<!DOCTYPE html>
<html>
<body>

<h1>My First Heading</h1>

<p>My first paragraph.</p>

</body>
</html>

Output:

CSS How To...

When a browser reads a style sheet, it will format the HTML document according to the information in the style sheet.

Three Ways to Insert CSS

External style sheet
Internal style sheet
Inline style

External Style Sheet

With an external style sheet, you can change the look of an entire website by changing just one file!

Each page must include a reference to the external style sheet file inside the <link> element. The <link> element goes inside the <head> section:

Example:
<!DOCTYPE html>
<html>
<head>
<link rel="stylesheet" type="text/css" href="mystyle.css">
</head>
<body>

<h1>This is a heading</h1>
<p>This is a paragraph.</p>

</body>
</html>
Output:

Thursday, January 26, 2017

CSS Syntax

A CSS rule-set consists of a selector and a declaration block:

CSS selector

The selector points to the HTML element you want to style.

The declaration block contains one or more declarations separated by semicolons.

Each declaration includes a CSS property name and a value, separated by a colon.

A CSS declaration always ends with a semicolon, and declaration blocks are surrounded by curly braces.

In the following example all <p> elements will be center-aligned, with a red text color:
Example:
<!DOCTYPE html>
<html>
<head>
<style>
p {
color: red;
text-align: center;
}
</style>
</head>
<body>

<p>Hello World!</p>
<p>These paragraphs are styled with CSS.</p>

</body>
</html>
Output:

What is CSS

    CSS stands for Cascading Style Sheets
    CSS describes how HTML elements are to be displayed on screen, paper, or in other media
    CSS saves a lot of work. It can control the layout of multiple web pages all at once
    External stylesheets are stored in CSS files

Why Use CSS?

CSS is used to define styles for your web pages, including the design, layout and variations in display for different devices and screen sizes.

CSS Solved a Big Problem

HTML was NEVER intended to contain tags for formatting a web page!

HTML was created to describe the content of a web page, like:

<h1>This is a heading</h1>

<p>This is a paragraph.</p>

When tags like <font>, and color attributes were added to the HTML 3.2 specification, it started a nightmare for web developers. Development of large websites, where fonts and color information were added to every single page, became a long and expensive process.

CSS Saves a Lot of Work!

The style definitions are normally saved in external .css files.
With an external stylesheet file, you can change the look of an entire website by changing just one file!

Explaination

    The <!DOCTYPE html> declaration defines this document to be HTML5
    The <html> element is the root element of an HTML page
    The <head> element contains meta information about the document
    The <title> element specifies a title for the document
    The <body> element contains the visible page content
    The <h1> element defines a large heading
    The <p> element defines a paragraph

HTML Tags

HTML tags are element names surrounded by angle brackets:

HTML tags normally come in pairs like <p> and </p>
The first tag in a pair is the start tag, the second tag is the end tag
The end tag is written like the start tag, but with a forward slash inserted before the tag name

Web Browsers
The purpose of a web browser (Chrome, IE, Firefox, Safari) is to read HTML documents and display them.

The browser does not display the HTML tags, but uses them to determine how to display the document:

The <!DOCTYPE> Declaration

The <!DOCTYPE> declaration represents the document type, and helps browsers to display web pages correctly.

It must only appear once, at the top of the page (before any HTML tags).

The <!DOCTYPE> declaration is not case sensitive.

HTML Versions

Since the early days of the web, there have been many versions of HTML:
Version        Year
HTML    1991
HTML 2.0        1995
HTML 3.2        1997
HTML 4.01     1999
XHTML          2000
HTML5    2014

What is HTML?

HTML is the standard markup language for creating Web pages.

HTML stands for Hyper Text Markup Language
HTML describes the structure of Web pages using markup
HTML elements are the building blocks of HTML pages
HTML elements are represented by tags
HTML tags label pieces of content such as "heading", "paragraph", "table", and so on
Browsers do not display the HTML tags, but use them to render the content of the page

css

Wednesday, February 8, 2017

HTML Basic

CSS How To...

Thursday, January 26, 2017

CSS Syntax

What is CSS

Explaination

HTML Tags

HTML tags are element names surrounded by angle brackets:

What is HTML?

Example:

<!DOCTYPE html>
<html>
<head>
<title>Page Title</title>
</head>
<body>

<h1>My First Heading</h1>
<p>My first paragraph.</p>

</body>
</html>

Total Pageviews

css

Wednesday, February 8, 2017

HTML Basic

CSS How To...

Thursday, January 26, 2017

CSS Syntax

What is CSS

Explaination

HTML Tags

HTML tags are element names surrounded by angle brackets:

What is HTML?

Example:

<!DOCTYPE html><html><head><title>Page Title</title></head><body><h1>My First Heading</h1><p>My first paragraph.</p></body></html>

Total Pageviews

<!DOCTYPE html>
<html>
<head>
<title>Page Title</title>
</head>
<body>

<h1>My First Heading</h1>
<p>My first paragraph.</p>

</body>
</html>