1. What does the web server do? 2. How to create an CSS file in windows? 3. How to create a button with action for javascript language? Can you make an example ? 4. Can you make comment for some difficult html language? 5. What happens when there is an HTML 5? 6. Write out the meaning of the following codes. body { background-image:url('/i/eg_bg_03.gif'); background-repeat:no-repeat; background-position:50px 100px; } 7. Write out the main programming codes for the following designing effect. You ou can use the first-letter pseudo-element to add a special effect to the first letter of a text! 8. How to create hyper link for email? for example: this is an email link: sending email