Which CSS property and value change the HTML element to a block-level element?1 pointalign-content contentlist-styledisplay: block

1. Break Down the Problem

• Identify the CSS properties that influence the display behavior of HTML elements.
• Find out which property specifically converts an element into a block-level element.

2. Relevant Concepts

• In CSS, the display property is used to define how an element is displayed on the page.
• Block-level elements occupy the full width available and start on a new line.

3. Analysis and Detail

• The property in question is display, and the value that changes an HTML element to a block-level element is block.
• The align-content property is used in flexbox and grid layouts to align rows and columns, and list-style deals with list item markers. Neither of these properties can turn an element into a block-level element.

4. Verify and Summarize

• The correct property-value pair to change an HTML element to block-level is indeed display: block.

Final Answer

The CSS property and value that change the HTML element to a block-level element is display: block.