Inline and Block Elements

Inline Elements

The Elements which starts and ends in a line, and does not include any block element in it.
Exp, Anchor, Span.

Block Elements

Block elements are the elements that create blocks,
Exp, Paragraph, Heading. They can have a break point.

However we can convert block elements into inline elements 
using css display property.

Click here to know display property

Advance CSS Tags

Grouping ( used for grouping of multiple tags, ids or class)

 h1, h2, p

{

color:green;

}

Nesting ( used to select a particular tag inside its parent tag)

For Exp 
 p

{

color:blue;

text-align:center;

}

.marked

{

background-color:red;

}

You can use this:

.marked p

{

color:white;

}