You are developing a Web site in HTML5. You want the new HTML5 structural elements (such as
Which type of application allows you to edit and validate your source code and preview your Web pages in multiple browsers?
Marsha has been hired by XYZ, Inc., to update the company Web site. Marsha discovers that the existing Web pages were structured using tables. Marsha needs to explain to XYZ why the Web site needs to be recoded in HTML5 with CSS controlling the structure of the document. What is the most important reason for using HTML5 and CSS?
Which HTML element aligns content both horizontally and vertically to the center of the table cell by default?