


Is the tag li a block-level element analysis_HTML/Xhtml_Web page production
Why can it set the height, but unlike the
elements, it feels like it is a "semi-inline" (inline: inline[text]-level) element. HTML 4 is described like this:The following elements may also be considered block-level elements since they may contain block-level elements:
- DD – Definition description
- DT – Definition term
- FRAMESET – Frameset
- LI – List item
- TBODY – Table body
- TD – Table data cell
- TFOOT – Table foot
- TH – Table header cell
- THEAD – Table head
- TR – Table row
This description seems to be saying that <li />
is a "semi-inline" element. Of course, elements similar to <td />
in this list also gave me such doubts. Today I took a look at the default CSS of each browser. The result is this:
Browsers | CSS |
---|---|
IE6/IE7 |
li{display:block; } |
IE8 / Webkit / Firefox / Opera |
li{display:list-item; } |
Here, it’s basically clear. In A-Grade browsers other than IE6/7, it is a "semi-inline" element. When it comes to display:list-item;
, in fact, even though all A-Grade browsers now support it, not many people use it. Why? In fact, it is of no use. In Quirks Mode, PPK says this:
display: list-item
means that the element is displayed as a list-item, which mainly means that it has a bullet in front of it (like an UL), except in IE 5 on Mac where it gets a number (like an OL). The numbers are buggy: all previous LI's in the page count as one, so this example starts with number 5 (the screenshot was made before I inserted my compatibility-LI's).Live example:display: blockdisplay: list-itemdisplay: list-item
Right. In fact, this does not mean much. But it can be regarded as solving one of my doubts. Share it. If you also have such doubts, maybe if a bug or other question arises next time when coding, you will probably be able to respond quickly.

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li is an element in the HTML markup language and is used to create lists. li represents a list item, which is a child element of ul or ol. The role of the li tag is to define each item in the list. In HTML, the li element is usually used with the ul or ol element to create an ordered or unordered list. Unordered lists use the ul element, and list items are represented by the li element, while ordered lists use the ol element, also using li Element representation.

In HTML, the full English name of li is "list item", which means "list item". It is an element tag that defines a list item. The syntax is "<li>list item content</li>"; "<li>" tag Available in ordered list "<ol>" and unordered list "<ul>".

How to remove the li default style in css: 1. Create an HTML sample file; 2. Add the li tag content; 3. Set the "list-style-type" attribute to "none" in css to remove the li default style.

Inline elements include div, p, h1-h6, ul, ol, li, table, form, etc.; block-level elements include span, a, img, strong, em, input, label, etc. The characteristics of the two elements: 1. Inline elements will occupy a row, automatically fill the width of the parent container, can set width, height, inner and outer margins and other attributes, and can contain other block-level elements and inline elements; 2. Inline elements will not It will occupy an exclusive line, the width and height are determined by the content, and the inner and outer margins only affect the arrangement of the elements themselves, etc.

There are five differences between inline elements and block-level elements: "box model", "arrangement", "content display", "relative position" and "default size": 1. Inline elements do not generate independent boxes, width and height Determined by the content, block-level elements will generate an independent rectangular frame, and attributes such as width, height, margins, and padding can be set; 2. Inline elements are arranged horizontally on the same line, while block-level elements will be pressed from top to bottom. Arrange in order; 3. Inline elements cannot contain block-level elements, while block-level elements can contain other block-level elements and inline elements.

The difference between inline elements and block-level elements: In-depth understanding of the classification of elements in HTML In HTML, elements can be divided into two categories: inline elements and block-level elements. Understanding their differences is very important to correctly master the layout and style of HTML. This article will provide an in-depth understanding of the characteristics of inline elements and block-level elements, and provide specific code examples. Inline elements Inline elements are elements that are displayed inline by default in HTML documents. They do not occupy an entire row, but appear closely within a row based on how the document flow is arranged. Common in the industry

Commonly used inline elements and block-level elements in HTML are: 1. Block-level elements include semantics such as <div>, <p>, <ul>, <ol>, <li>, <h1>~<h6>, and <header>. tags; 2. Inline elements include tags such as <span>, <a>, <strong>, <em>, <img>, and <input>.

Inline elements include a, span, strong, b, em, i, label, img, input, select, textarea, button, abbr, cite, code, big, small, sub, sup, etc. Block-level elements include div, p, h1-h6, form, ul, ol, dl, dt, dd, li, table, tr, td, th, hr, blockquote, address, menu, pre, etc.
