Use the text-indent property to indent the first line of a paragraph. Possible values are % or a number specifying indent space.
Example
You can try to run the following code to indent the first line:
<html> <head> </head> <body> <p style = "text-indent:2cm;"> This text will have first line indented by 2cm and this line will remain at its actual position this is done by CSS text-indent property. </p> </body> </html>