Summary of block-level elements and inline elements and variable elements

p - paragraph

pre - Format text

table - table

ol - Sort form

ul - non-sorted list

address - Address

blockquote - Block Quotation

center - centered aligned blocks

div - Common block level

dl - define list

fieldset - form control group

form - interactive form

h1 - Big Title

h2 - Subtitle

h3 - Level 3 title

h4 - Level 4 title

h5 - Level 5 title

h6 - Level 6 title

hr - Horizontal Dividing Line

isindex - input prompt

noframes - frames optional content

noscript - optional script content

li - List item

a - anchor point

abbr - abbreviation

acronym - First word

b - Bold (not recommended)

bdo - bidi override

big - large font

br - Line break

cite - Quote

code - computer code

dfn - define fields

em - stress

font - Font settings

i - Italic

img - Picture

input - input box

kbd - define keyboard text

label - table label

q - Short Quotation

s - Mid-score

samp - Define example computer code

select - Project selection

small - small font text

span - Commonly used inline containers, defining blocks within text

strike - mid-shot

strong - bold emphasis

sub - Subscript

sup - superscript

textarea - Multi-line text input box

tt - Teletext

u - Underline

var - define variables

A variable element is a block element or an inline element that is determined based on the context.

applet - java applet

button - button

del - Delete text

iframe - inline frame

ins - Inserted text

map - picture block (map)

object - object object

script - Client script