How to include css in html web page?

It seems like simple thing but many web design freshers don't know how to include css file into html file.
In the beginning day of my learning web design i was unaware of these things.

<link rel=''stylesheet" href="css/mystyle.css" media="screen">

Click to expand...

In the above code rel means relationship is equal to style sheet.
And the important thing is we should not give wrong path for css file. Here i have created a css folder then i have saved my 'mystyle.css' file then i am pointing that file into this html. If your style sheet will be in your main file only then no need to give any path.

Media is equal to screen means it will adjust to the device screen that may be computer, laptop or mobile. If you put media is equal to all then it it comes under print quality also.

There are many things to know about css but this just a simple fundamental.

We can insert the CSS file in HTML web page in three different ways
1. External CSS
2. Internal CSS
3. Inline CSS
For brief information about CSS click on w3schools.com which tell you detail information about it.

External CSS is very effective for formatting entire web pages of the website which reduce our efforts and time to give style to various elements of the webpage.

Make new css style sheet file with dreamweaver create options.

See there is create css style file.