Answer :
Final answer:
The CSS2 rule for downloading font information for websites is 'font-face'. 'CSS' stands for Cascading Style Sheets. In the margin property 'margin: 10px 5px 20px 15px;', the left margin is '15px'.
Explanation:
The CSS2 rule that enabled browsers to download font information and thus permitted, in principle, virtually any font to be used on any site is a) font-face. This rule is a part of Cascading Style Sheets (CSS), which is a style sheet language used for describing the presentation of a document written in HTML or XML.
CSS stands for b) Cascading Style Sheets, not Cross-site scripting, Creative style sheets, or Compiled site styles. When setting the margins of an element in CSS with the shorthand property 'margin', the values are applied in the order of top, right, bottom, left. Therefore, if we have margin: 10px 5px 20px 15px;, the left margin would have a value of 15px.
