The element contains all the content of an HTML document. Thus, to change the background color of an entire page, the background-color property should be applied to the element.

You can also apply background colors to other elements including headlines and text. In the example below, different background colors are applied to elements.

With CSS, a color is most often specified by:

• HEX value - like "#ff0000"
• an RGB value - like "rgb(255,0,0)"
• a color name - like "red"

How do you underline text?
You can underline the text by typing in the following example,

are underlined headlines, h1 {text-decoration:underline;} or underline text

What is a pseudo-class?
A pseudo-class allows you to take into account different conditions or events when defining a property for an HTML tag.

How can you style all links on your website with a few lines of code?

With the width-property, you can define a certain width of an element.

div.box {
 width: 200px;
 border: 1px solid black;
 background: orange;

}

The default indenting is 0, if you want to indent your text, you would add a positive length or percentage. If you wanted to outdent your text, you would add a negative length or percentage. For example: