The application of DHTML was introduced by Microsoft with the release of Internet Explorer 4 in year …………… .

……………. is a set of style sheet design principles that determines the visual layout of the content of a web page.

Cascading Style Sheets is a collection of rules called ……………. that affect the visual appearance of a web page.

CSS allows the web designers to specify the web page formatting options through a ……………. while keeping HTML markup considerably simple.