What steps can I take to troubleshoot and fix the height of a div/span element?

Here is my HTML code:

<div>
  <span style="display: inline-block;height:20px">20</span>
  <span style="display: inline-block;"><img src="img/ex.png"/></span>
</div>

The image I have in the second span is sized at 15x15 pixels

Upon inspecting with Chrome, I noticed that the first image has a height of 15 and the second span has a height of 21. (the first one should have been 20 as expected)

I'm puzzled as to why the second span has a height of 21 instead of 15.

Any insights on this would be greatly appreciated. Thank you!

Below is the code snippet:

<!DOCTYPE html>
<html>
  <head>
  <style>

<!-- CSS reset starts here -->

/* http://meyerweb.com/eric/tools/css/reset/ 
   v2.0 | 20110126
   License: none (public domain)
*/

html, body, div, span, applet, object, iframe,
h1, h2, h3, h4, h5, h6, p, blockquote, pre,
a, abbr, acronym, address, big, cite, code,
del, dfn, em, img, ins, kbd, q, s, samp,
small, strike, strong, sub, sup, tt, var,
b, u, i, center,
dl, dt, dd, ol, ul, li,
fieldset, form, label, legend,
table, caption, tbody, tfoot, thead, tr, th, td,
article, aside, canvas, details, embed, 
figure, figcaption, footer, header, hgroup, 
menu, nav, output, ruby, section, summary,
time, mark, audio, video {
    margin: 0;
    padding: 0;
    border: 0;
    font-size: 100%;
    font: inherit;
    vertical-align: baseline;
}
/* HTML5 display-role reset for older browsers */
article, aside, details, figcaption, figure, 
footer, header, hgroup, menu, nav, section {
    display: block;
}
body {
    line-height: 1;
}
ol, ul {
    list-style: none;
}
blockquote, q {
    quotes: none;
}
blockquote:before, blockquote:after,
q:before, q:after {
    content: '';
    content: none;
}
table {
    border-collapse: collapse;
    border-spacing: 0;
}

  </style>
   </head>

  <body>

  <div>
  <span style="display: inline-block;height:20px">20</span>
  <span style="display: inline-block;"><img src="img/ex.png"/></span>
  </div>

</body>
</html>

Answer №1

It's possible that the size of the image is larger than expected, or there may be padding/margin affecting the image or span element. Make sure to thoroughly inspect each element in Chrome to identify any discrepancies.

  1. Begin by examining the image and then the span element.
  2. Utilize the Metrics tool on the right side of the window.
  3. The graphical representation will display the various contributors to the element size, such as padding, margin, border, and overall element size.

Answer №2

testing out the height on my webpage, currently set to 15px

Have you applied any padding to the span element?

Try using *{padding:0;margin:0;} as a CSS rule.

Alternatively, assign a class to the span element and add

.span{padding:0!important;margin:0!important;}

You could also include the following code:

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">

at the beginning of the page for W3C compliance

Answer №3

One helpful tip is to utilize Chrome's developer tools for inspecting elements and analyzing the computed styles. It seems probable that the padding styles may be inherited from another source.

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