Css counter increment

Example.Example body { counter-reset: chapter 3; } h1::before { counter-increment: chapter; content: "Chapter " counter(chapter) ": "; } CSS counter-reset property HTML This is the HTML chapter. CSS This is the CSS chapter. JAVASCRIPT This is the JAVASCRIPT chapter. Using Counter Reset for Decreasing ValuesTo create a counter or reset an existing one with a specific integer value and use it for maintaining and displaying decreasing values, we can use the counter-reset property in combination with counter-increment property. This is shown in the following example.Example body { counter-reset: floor 4; } h1::before { counter-increment: floor -1; content: "Level " counter(floor) ": "; } CSS counter-reset property Third Floor This is third floor. Second Floor This is second floor. First Floor This is first floor. Using Counter Reset for Resetting Exisiting CounterTo reset an existing counter and use it for maintaining and displaying increasing or decreasing values, we can use the counter-reset property in combination with counter-increment property. This is shown in the following example.Example body { counter-reset: section-counter; } h3 { counter-increment: section-counter; } h3::before { content: "Section " counter(section-counter) ": "; font-weight: bold; } .reset-counter { counter-reset: section-counter 9; } CSS counter-reset property Introduction Overview Details Background History Context Conclusion Summary Future Work Supported Browsers Property counter-reset 4.0 8.0 2.0 3.1 9.6 css_properties_reference.htm

CSS - counter-reset PropertyCSS counter-reset property is used for creating a new counter or resetting an existing counter. When using the property, the counter is initialized to zero by default. The property is used in combination with counter-increment property to manage the numbering of elements.Syntaxcounter-reset: none | name number | initial | inherit;Property Values Value Description none No counter is reset. Default. name number It identifies the counter by name and resets the value to be reset on each occurence of the element. The default value is 0 if not specified. initial It sets the property to its default value. inherit It inherits the property from the parent element. Examples of CSS Counter Reset PropertyThe following examples explain the counter-reset property with different values.Using Counter Reset for Increasing ValuesTo create a counter or reset an existing one with zero default value and use it for maintaining and displaying increasing values, we can use the counter-reset property in combination with counter-increment property. This is shown in the following example.Example body { counter-reset: heading; } h1::before { counter-increment: heading; content: "Heading " counter(heading) ": "; } CSS counter-reset property Introduction This is the introduction section. Background This is the background section. Conclusion This is the conclusion section. Counter Reset Property with Integer ValueTo create a counter or reset an existing one with a specific integer value and use it for maintaining and displaying increasing values, we can use the counter-reset property in combination with counter-increment property. This is shown in the following

DefinitionThe CSS counter-reset property is used to reset the value of a counter to a specified value. It is used in conjunction with the counter-increment and counter() properties to display a running list of items with custom symbols or styles.ExamplesIn this example, a counter named section is reset for the entire body element using counter-reset: section;. The h1 element's :before pseudo-element increments the section counter using counter-increment: section;, and then the content property displays the counter value using content: "Section " counter(section) ": ";:body { counter-reset: section;}h1:before { counter-increment: section; content: "Section " counter(section) ": ";}In this example, an ordered list ol has a counter named li reset using counter-reset: li;. Each list item li increments the li counter using counter-increment: li;, and the :before pseudo-element of each list item displays the counter value using content: counter(li) ".";:ol { counter-reset: li;}li { counter-increment: li;}li:before { content: counter(li) ".";}In this example, a counter named custom-symbol is reset for the entire body element using counter-reset: custom-symbol;. The h2 element's :before pseudo-element increments the custom-symbol counter using counter-increment: custom-symbol;, and then the content property displays the custom symbol using content: "➤";:body { counter-reset: custom-symbol;}h2:before { counter-increment: custom-symbol; content: "➤";}ValuesValueDescription[counter-name]The name of the counter that will be reset.[integer]The value to which the counter will be reset. The default is 0.Best PracticesUse the counter-reset property in conjunction with counter-increment to create a running list of items with custom symbols or styles.Use the counter() function to display the value of a counter in the content property.Use

VALUES(0), (0), (3);mysql> SELECT c1 FROM t1;+----+| c1 |+----+| 1 || 2 || 3 |+----+mysql> UPDATE t1 SET c1 = 4 WHERE c1 = 1;mysql> SELECT c1 FROM t1;+----+| c1 |+----+| 2 || 3 || 4 |+----+mysql> INSERT INTO t1 VALUES(0);mysql> SELECT c1 FROM t1;+----+| c1 |+----+| 2 || 3 || 4 || 5 |+----+InnoDB AUTO_INCREMENT Counter Initialization This section describes how InnoDB initializes AUTO_INCREMENT counters. If you specify an AUTO_INCREMENT column for an InnoDB table, the in-memory table object contains a special counter called the auto-increment counter that is used when assigning new values for the column. In MySQL 5.7 and earlier, the auto-increment counter is stored in main memory, not on disk. To initialize an auto-increment counter after a server restart, InnoDB would execute the equivalent of the following statement on the first insert into a table containing an AUTO_INCREMENT column. SELECT MAX(ai_col) FROM table_name FOR UPDATE; In MySQL 8.0, this behavior is changed. The current maximum auto-increment counter value is written to the redo log each time it changes and saved to the data dictionary on each checkpoint. These changes make the current maximum auto-increment counter value persistent across server restarts. On a server restart following a normal shutdown, InnoDB initializes the in-memory auto-increment counter using the current maximum auto-increment value stored in the data dictionary. On a server restart during crash recovery, InnoDB initializes the in-memory auto-increment counter using the current maximum auto-increment value stored in the data dictionary and scans the redo log for auto-increment counter values written since the last checkpoint. If a redo-logged value is greater than the in-memory counter value, the redo-logged value is applied. However, in the case of an unexpected server exit, reuse of a previously allocated auto-increment value cannot be guaranteed. Each time the current maximum auto-increment value is changed due to an INSERT or UPDATE operation, the new value is written to the redo log, but if the unexpected exit occurs before the redo log is flushed to disk, the previously allocated value could be reused when the auto-increment counter is initialized after the server is restarted. The only circumstance in which InnoDB uses the equivalent of a SELECT MAX(ai_col) FROM table_name FOR UPDATE statement to initialize an auto-increment counter is when importing a table without a .cfg metadata file. Otherwise, the current maximum auto-increment counter value is read from the .cfg metadata file if present. Aside from counter value initialization, the equivalent of a SELECT MAX(ai_col) FROM table_name statement is used to determine the current maximum auto-increment counter value of the table when attempting to set the counter value to one that is smaller than or equal to the persisted counter value using an ALTER TABLE ...