What does the phrase div style display none mean?

It's in a hidden layer.

Because display is none, this part will not be displayed on the page.

This means that this layer is not displayed on the web page and is hidden.

none This element will not be displayed.

block This element will appear as a block-level element, with a line break before and after it.

inline defaults. This element is displayed as an inline element with no line breaks before and after the element.

inline-block element. ( New Value).

list-item This element is displayed as a list.

run-in This element is displayed as a block-level element or an inline element depending on the context.

Compact CSS has the value compact, but it has been removed from due to lack of broad support.

There is a value marker in marker css, but it has been removed from the due lack of broad support.

table This element is displayed as a block-level (similar to ), with a line break before and after it.

inline-table This element is displayed as an inline (like that) with no line breaks before and after it.

table-row-group This element is displayed as a grouping of one or more rows (similar to ).

table-header-group This element is displayed as a grouping of one or more rows (similar to ).

table-footer-group This element is displayed as a grouping of one or more rows (similar to ).

table-row This element appears as a line (like ).

table-column-group This element is displayed as a grouping of one or more columns (similar to ).

table-column This element is displayed as a cell column (similar to ).

table-cell This element is displayed as a cell (similar to and ).

table-caption This element is displayed as a header (like ).

inherit specifies that the value of the display property should be inherited from the parent element. The above is the property value of the display What you are pasting** means: The content of this label will not be displayed!

style indicates the style of the DIV.

display is used to set the display status of a tag, and there are three possible values:

1) none: does not show or hides.

2) block: It is displayed as a block tag, that is, the tag occupies an exclusive line, with a line break before and after.

3) inline: indicates that the label is displayed as a row-level label, that is, the label is the same as other labels.

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display: block to block element display;

display:none: hides block elements;