CSS

To create an external style sheet all you need to do is create a simple text document (on windows you simply right-click and select new -> text document) and then change the file from type .txt to .css.

Points to remember for external CSS

You don’t add these tags in the CSS page itself as you would if you embedded the CSS code in your HTML

<style type="text/css"></style>

Since the CSS link in your web page says that you are linking to a CSS page, you don’t need to declare (in the external CSS file) that the code in the CSS page is CSS. That is what the above tags do. Instead you would just add your CSS code directly to the page like so.

.myNewStyle {
font-family: Verdana, Arial, Helvetica, sans-serif;
font-weight: bold;
color: #FF0000;
}
.my2ndNewStyle {
font-family: Verdana, Arial, Helvetica, sans-serif;
font-weight: bold;
color: #FF0000;
}
.my3rdNewStyle {
font-family: Verdana, Arial, Helvetica, sans-serif;
font-weight: bold;
font-size: 12pt;
color: #FF0000;
}

In the above example I have created a series CSS classes that can be applied to any HTML tag like so:

<h2 class=”my3rdNewStyle”>My CSS styled  text</h2>

In the above example I applied a CSS style to a <h2> tag. Normally this tag sets the size of the text that it wraps to a size that is preset in the browser (ex: 10 pixels).When you apply a CSS class to it, the CSS code overrides the default size that you would normally get with an <h2> tag in favor of the size specified in the CSS class. So now you can see that CSS can override default HTML tag behavior.