1. The inline element sets the vertical direction of padding and margin invalid
2. Chunk elements (block Element)Address-BLOCKQUOTE-block Reference Center-Zi DIR-directory listing div-common block level easy, also CSS layout main tag DL-definition list fieldset-form control group form- Interactive form H1-Large title H2-subtitle h3-3 level title h4-4 level title H5-5 level title H6-6 level header hr-Horizontal divider isindex-input Prompt Menu-menu list noframes-f Rames optional content (for browsers that do not support frame to display this chunk content noscript-) optional script content (for browsers that do not support script) ol-Sort form P-paragraph pre-formatted Text table-table ul-unordered List
3. Inline elements (inline element)A-anchor point ABBR-abbreviation acronym-first word B-bold (not recommended) Bdo-bidi override big-Large font BR-linefeed cite-reference code-computer code (required when quoting source) DFN-Set Semantic field em-Accent font-font setting (not recommended) I-Italic img-Picture input-input box KBD-Define Keyboard text label-table tag Q-Short reference S-underscore (not recommended) Samp-Define sample computer code s Elect-project selection small-small font text span-commonly used inline container, definition text block strike-underlined strong-bold accent sub-subscript sup-Superscript textarea-multiline text input box TT-Telex text U-underline var-Define Variable
4. Variable elements
: A mutable element determines whether the element is a block element or an inline element, depending on the context context. Applet-java Applet button-button del-delete text iframe-inline frame ins-Inserted text map-picture block (map) Object-object Object Script-Guest The user-side script
