XHTML/CSS Memory big test, both of which exceed me. I invite you to dinner! (Today is no longer a Fool's Day)

Dudu see http://space.cnblogs.com/forum/topic/1782/

How much do you know about XHTML and CSS? Let's take a test! The test of XHTML and CSS takes only 14 minutes (xhtml6 minutes, CSS 8 minutes, no way, CSS is too complicated)

One night and one morning, I am exhausted ~~~~~~~~~ Remember to give a link for reprinting

My comments on the first floor are my scores. Let's see how much you can get. Both of them are more than mine. You can consider mixing them into a meal. Haha (the current browser and text editor are too powerful, it's easy, but the next Fool's Day will be a year later, haha)

For mixed meals, please note: I am in Beijing tiantongyuan, and the road fee is your own.

Help: click one of the two buttons to start the test. After the test starts, the countdown starts at the same time, the XHTML countdown starts at 6 minutes, And the CSS countdown starts at 8 minutes, every time you enter a correct tag, it will automatically appear in the "You remembered" section below. When the time is up, it will prompt you to think about it. Haha, it's very easy. Hurry up, you can try it several times before getting familiar with it. Do not click the above button after the test starts, because the test you clicked will start again later. When the time is reached, you will receive a score prompt. We recommend that you copy the score to the comment area below.

Note: The XHTML version is xhtml1.1, And the CSS version is css2, all of which are from the W3C official website.
Xhtml1.1: http://www.w3.org/TR/xhtml-modularization/abstract_modules.html
Css2: http://www.w3.org/TR/REC-CSS2/propidx.html

Countdown: Enter: And Effort

You already remembered :?