Sams Teach Yourself HTML, CSS & JavaScript Web Publishing in One Hour a Day

ptg16476052

572 LESSON 20: Working with Frames and Linked Windows

Workshop

As if you haven’t had enough already, here’s a refresher course of questions, quizzes, and

exercises that will help you remember some of the most important points you learned in

this lesson.

Q&A

Q Is there any reason why you should sandbox iframe content from your own

server?

A The decision to sandbox content shouldn’t be made based on where the content is

coming from, but rather how reliable and trustworthy you find the source. If you

are posting your pages to a shared domain, you might have no knowledge of the

designers of another site on that domain. Sandboxing helps you maintain security.

Q What if I use the <frame> tag anyway?

A Most browsers still support frames, so your content will still work. However, it is

considered poor form. And with iframes and CSS, there are many options that don’t

have the drawbacks of frames while providing the same functionality.

Quiz

1. Where does the keyword _self take readers if they click a link with that target?


2. If you want a link to open in a named iframe, what attribute do you need to use?


3. When a web page includes the element, what element cannot be used
   at the beginning of the HTML document?


4. What attribute of the