how to include CSS in html, | How to add CSS to html

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Thursday, 25 March 2021
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How To Include CSS In Html


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

how to include CSS in html
how to include CSS in html


Three Ways to Add CSS To Html

There are three ways of Adding a Cascading style sheet :

  • External CSS
  • Internal CSS
  • Inline CSS

External CSS how to include css in html

We can change the look of an entire website by changing just one file , With an external style sheets.

Each HTML page must be include a reference to the external style sheet file inside the Html <link> element, inside the head section.

Example

External styles are defined in the Html<link> element, inside the <head> section of an HTML page:

<!DOCTYPE html>
<html>
<head>
<link rel="stylesheet" href="style.css">
</head>
<body>

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

</body>
</html>
Try it Yourself »

An external style sheet can be written By any text editor, and must Be saved with a .css extension.

The external .css file should not contain any HTML tags.

In the following example we are try to show how the "style.css" file looks:

"style.css"

body {
  background-color: lightblue;
}

h1 {
  color: blue;
  margin-left: 11px;
}

  Note: Do not Insert a space between the property value and the unit

 (such as margin-  left: 11  px;). The correct way is: margin-left: 11px;

Internal CSS |,How to add CSS to html,

An internal style sheet may be used if one single HTML page has a unique style.

The internal style is defined inside the <style> element, inside the head section.

Example

Internal styles are defined within the <style> element, inside the <head> section of an HTML page:

<!DOCTYPE html>
<html>
<head>
<style>
body {
  background-color: linen;
}

h1 {
  color: maroon;
  margin-left: 40px;
}
</style>
</head>
<body>

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

</body>
</html>
Try it Yourself »

Inline Style Sheet CSS, How to add CSS to html,

In the web page , An inline style may be used to apply a unique style for a particular single element.

To use inline styles, we add the style attribute to the relevant element. The style attribute can contain any CSS property in web page.

Example

Inline style sheet are defined within the "style" attribute of the relevant element:

<!DOCTYPE html>
<html>
<body>

<h1 style="color: blue; text-align: center;">That is a heading</h1>
<p style="color:red;" >That is a paragraph.</p>

</body>
</html>
Try it Yourself »

 Note: An inline style loses many of the advantages of a css style sheet (by mixing content with presentation). Use this method sparingly.

Multiple Style Sheets, how to put css in html,

If some CSS properties have been defined for the same selector (element) in different CSS style sheets, the value from the last read CSS style sheet will be used. 

Assume that an external style sheet has the following style for the <p> element:

p {
  color: green;
}

Then, assume that an internal style sheet also have following style for the <p> element:

p {
  color: orange;   
}

Example

If the internal style sheet is defined after link to the external style sheet, the <p> elements will be "orange":

<head>
<link rel="stylesheet" type="text/css" href="style.css">
<style>
p {
  color: orange;
}
</style>
</head>
Try it Yourself »

Example how to put css in html

However, if the internal style sheet is defined before the link to the external style sheet, the <p> elements will be "blue": 

<head>
<style>
p {
  color: orange;
}
</style>
<link rel="stylesheet" type="text/css" href="style.css">
</head>
Try it Yourself »

Cascading Order, how to create a css file

What style will be used when there is more than single style defined for an HTML element?

All the styles in a web page will "cascade" into a new "virtual" style sheets by the following rules, where number one has the highest priority:

  1. Inline style : Specify inside an HTML element.
  2. External and internal style sheets : specify in the head section.
  3. Browser default

So, an inline style sheet has the highest priority, and will override external and internal styles and browser defaults.






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How To Include CSS In Html, How to add CSS to html, how to put css in html, how to insert css in html, how to create a css file, 

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