I just went in and opened it for you. You right-click the picture you sent, where you said the mouse would change, then save the picture as, download the picture and open it, and you will find that it is a mosaic of small pictures.
Let me briefly talk about my thoughts. Do mouse action on the web page. When the mouse moves to a certain position, a message will be generated, which will make that area look like what you downloaded. The red one at the back can be used as the background, and the one with a little pattern at the back is actually a picture. You'll know when you download it, then use the straw tool to find the red one in ps, and then use DW to change the background to the color found by the straw in ps. As for streamlined lines, if you save the picture as.
3。 Building a website has nothing to do with what you said. DW is a tool for building websites, and the latter two are languages. Building a website is the work that begins after the website is completed. If ordinary windows users are not demanding, they will use IIS. There are others, of course. IIS can't explain php without plug-ins, but can only explain asp or ASP.NET. Of course, everyone can explain html, a purely hypertext web page.
I'm tired of typing, I hope it will help you, and you can add anything you don't understand. Answer over
Supplement: Open the source code of the website, with js code at the beginning and the form at the back. In fact, there are other possible ways to achieve this. Now many of them are made by flash, and he is made by js+ form. Because I haven't done website programs for a long time, I have forgotten many details about html forms. You should be able to find a lot of things you want by looking up your watch online. There is also a div tag. Look at the code. I can only answer so much.