The padding-right specifies the right padding of an element. This can take a value in terms of length of %.
Example
<html> <head> </head> <body> <p style = "padding-right: 20px; border:2px solid blue;"> This is demo content. </p> <p style = "padding-right: 20%; border:2px solid blue;"> This is another demo content/ </p> </body> </html>