การจัดการเว็บไซต์ part 3

26.Where in an HTML document is the correct place to refer to an external style sheet?

30.What is syntax?

28.How do you turn a line into a comment?

21.What is the correct HTML for inserting an image?

22.Choose the wrong answer about list tag?

25.What is the correct HTML for referring to an external style sheet?

23.What is the correct HTML for inserting a background image?

27.What is the function of the <ul> tag?

29.What will this code generate?<div style="width:50px; height:50px; background-color:red">

24.What does CSS stand for?