Collapsing margins

by agib August 02, 2013

HTML

<h3>h3. Margin-bottom: 40px</h3>
<h4>h4. Margin-top: 40px</h4>

<div class="margin-bottom">div. Margin-bottom: 40px</div>
<div class="margin-top">div. Margin-top: 40px</div>

CSS

h3, div.margin-bottom { background-color: Yellow; margin-bottom: 40px; }
h4, div.margin-top { background-color: Fuchsia; margin-top: 39px; border: 1px solid Black; color: White; }
div { height: 20px; }
h3 + h4 {  }

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Collapsing margins

HTML

CSS

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