A question for DIV CSS newbies

LI tag when mouse over the UL tag below and Apply over style LI tag below UL tag apply style: display:block;

Here's a similar lz to look at.

Style: It's html, xhtml, xml gorgeous coat.

It's like the design style when making clothes.

display:block；It is the elements in the UL line that are forcibly converted into block-level elements.

Otherwise you can't set his top and bottom padding.

Here's how it works: Move the mouse to display a drop-down menu.

Indicate that these containers are displayed in a CSS box model (blocky), with the benefit that width, height, etc. can be set.

1. Logical thinking;

2. Awareness of **;

3. Ability to organize the framework;

4. Understand the embedded and imported methods of CSS, generally using the imported type;

5. Pay attention to its format when compiling ** (to ensure that it is clearly visible);

6. Understand some common functions and usages;

See ** for results.

** As follows: one

twothree

four<>

Error in the question: ID name cannot start with a number.

If you don't take into account width, it's a margin: 5px 0; That's it. The height is not required.

1.The form button takes precedence by using the browser's built-in style and is classified as a border, so the border must be cleared to use customization.

2.I'm afraid that you haven't fully mastered this rule yet.

3.Elements can be centered horizontally using margin: auto, and content can be centered with text-align: center

4.Tbody is a standard way of writing, whether there is a browser or not, it can be recognized, but there will be requirements in JS, tbody is more in line with the idea of DOM, and each browser has different views on tbody.

5.There are a lot of them online, and they're all pretty much the same, actually.