Why Is My Image in an Anchor Tag Showing Extra Whitespace Below?

Whitespace Challenge at Bottom of Anchor Tag

You've encountered a puzzling whitespace problem where an anchor tag containing an image appears slightly taller than its content. Despite setting both margins and padding to zero, a three-pixel gap emerges beneath the image. This discrepancy disrupts the intended visual alignment within the surrounding div border.

Understanding the Cause

The problem lies in CSS formatting. By default, images are displayed inline, resembling text characters on the written baseline. Unfortunately, this placement includes additional whitespace reserved for descender characters (e.g., j, g, y, p).

Resolving the Whitespace

To rectify this issue, adjust the vertical alignment using CSS:

img {
  vertical-align: bottom;
}

By setting vertical-align: bottom, you align the image to the bottom of the text line, effectively eliminating the whitespace gap. Now, your image and border will align seamlessly, achieving your desired visual effect.

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