Web Front-endHTML TutorialAn article to help you understand the basic rules of HTML and the structure of web pagesAn article to help you understand the basic rules of HTML and the structure of web pages
If you are not committed to becoming an artist, then as a developer, you can read HTML and make simple modifications when necessary. Follow my ideas below to ensure that this article will help you understand HTML. Of course, during the reading process, it is best to try it yourself, so that your understanding will be deeper.
1. Basic rules of html
<html> <head> <title>我的网页</title> ……………………….. </head> <body> …………………. </body> </html>
Almost all web pages follow this format. This is a mark that a web page must have. Each mark must be placed In , it ends with >, but a lot of messy things are added in the ellipses, which is what we see. Copy the above code to a notepad, and then save it as a.html file. It will become a web page. Give it a try! Next, open it in Notepad mode, add the word "Homepage" between
, save it, and open it again to take a look.Next, add the mark before and after the homepage to change it to Homepage, save it, and see the effect again?
Are they the hyperlinks we usually see online? It's just that there is no change when clicking "Home" here, because the empty connection we added is to strike while the iron is hot. We follow the previous method to create a page, save it as b.html, and then replace the "#" above with b.html. Open it, click on the home page, and it will jump to page b. (Of course, pages a and b must be in the same directory.) By now, you should understand that in fact, all functions on the web page are implemented by different tags similar to . When you need to do Just remember the function of these tags.
2. Web page structure
If you pay attention when surfing the Internet, web pages are actually divided into blocks. Of course, this is just a rough structure. You can also divide it into many blocks as needed. The main purpose of dividing the blocks is to modify aspects and determine their respective presentation styles. This is mainly achieved through the
tag. Let me try adding the<div> <a href=”b.html”>首页</a> </div>
Save it and try opening it. What is the effect? Is it still the same as before the modification? Let’s add some modifications to it:
<div style=”width:200px;height:100px;border-style:solid;” >
is running, and the block we marked is shown with a blue background! By adding a lot of
blocks, you can split the web page into eight pieces, haha, and then put what you want in each block. Of course, manyCreate a new notepad, rename it to c.css and then open it and write:
#header{width:200px;height:100px;border-style:solid;} And delete it in a.html. Then add before , which means introducing the file c.css. The advantage of putting the css into a separate file is that if this style is referenced in many places, we only need to modify this one place and everything will change. Otherwise, we have to manually modify each place, which is not conducive to later maintenance.
Finally, change the
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