What is the Difference Between Block and Inline Elements?

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The main difference between block and inline elements in HTML lies in their layout and positioning on the web page:

  • Block elements:
  • Always start on a new line.
  • Take up the full width available (stretch out to the left and right).
  • Have top and bottom margins.
  • Examples: <p>, <div>, and <hr>.
  • Inline elements:
  • Never start on a new line.
  • Only take up as much width as necessary (occupy the space bounded by the tags in the HTML element).
  • Do not have top and bottom margins.
  • Examples: <span>, <br>.

Block elements are typically used for creating distinct sections or groups of content on a web page, while inline elements flow within the text and are used for formatting specific parts of the text.

Comparative Table: Block vs Inline Elements

Here is a table comparing the differences between block and inline elements:

Feature Block Elements Inline Elements
Width Occupies full width irrespective of their sufficiency Occupies only necessary width
Line Breaks Starts in a new line Doesn't start in a new line
Spacing Automatic top and bottom margins No top and bottom margins
Nesting Does not allow other elements to sit behind Allows other inline elements to sit behind
Examples <h1>-<h6>, <p>, <div> <span>, <b>, <a>

Block elements always start in a new line and take up the full width available, while inline elements do not start in a new line and only occupy the necessary width. Inline elements can be nested within other inline elements, whereas block elements do not allow other elements to sit behind them.