While noticing a number of CSS websites of late, I have noticed that people write them inline and some of them even use an indented form. But I personally prefer to read from the indented form and also came to know that it is a good practice. Is this true?

Irrespective of the normal practice, it is better to choose a style with which you are most comfortable with. In this way, one can also choose to troubleshoot the site easily without any hassles.