<p class="box1">This paragraph has a span <span class="ib">with padding</span> and has inline flow-root. Therefore the padding will push away other lines of text.</p>

<div class="box box2">
  <img src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/12005/balloon-sq1.jpg" alt=""> The image has been floated to the left. This box does have display: flow-root.
<p>This paragraph follows the box which contains the float.</p>
span {
  background-color: rgba(0,0,0,.4);
  color: #fff;
  padding: 10px;
  display: inline flow-root;

.box {
  clear: left;
  background-color: #333;
  color: #fff;
  max-width: 500px;
  margin: 0 0 2em 0;
  padding: 1em;
  display: block flow-root;

p {
  margin: 2em 0;
  width: 400px;

.box img {
  float: left;
  width: 150px;
  margin: 0 10px 10px 0;

body {
  padding: 1em;
  font: 1.2em/1.4 Arial, Helvetica, sans-serif;

External CSS

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