<!DOCTYPE HTML> <title>CSS 2.1 Test Suite: float placement around other float in BFC but outside containing block</title> <link rel="author" title="L. David Baron" href="https://dbaron.org/" /> <link rel="author" title="Mozilla Corporation" href="http://mozilla.com/" /> <link rel="help" href="http://www.w3.org/TR/CSS21/visuren.html#floats"/> <meta name="flags" content="" /> <meta name="assert" content="Test for float placement around other float in BFC but outside containing block" /> <!-- CSS2.1 9.5.1 rule 3 says: The right outer edge of a left-floating box may not be to the right of the left outer edge of any right-floating box that is to the right of it. Analogous rules hold for right-floating elements. --> <!-- the block formatting context inside which we're testing --> <div style="float: left; width: 500px; height: 500px"> <div style="float: right; width: 50px; height: 300px"></div> <div style="margin-right: 100px"> <!-- 400px wide --> <!-- we're testing the position of this float --> <div style="float: left; width: 475px; height: 10px; background: blue"></div> </div> </div>