<!DOCTYPE html>
<html>
<style>
 body { background: white; }
 .rel, body { position: relative; }
 div > div { direction: ltr; height: 10px; }
 div > div > div { width: 100px; background: lime; }
 .rtl { direction: rtl; }
 #testpercentmargin > div > div { margin: 0 4%; }
 #testabsolutemargin > div > div { margin: 0 20px; }
 #testpercentpadding > div { padding: 0 4%; }
 #testabsolutepadding > div { padding: 0 20px; }
 #testborderparent > div { border-width: 0 20px; border-color: white; border-style: solid; }
 #testborderkid > div > div { border-width: 0 20px; border-color: white; border-style: solid; }
</style>
<body style="width: 500px; margin-left: 100px;">
<div id="testplain">
  <div><div></div></div>
  <div class="rel"><div></div></div>
  <div class="rtl"><div></div></div>
  <div class="rel rtl"><div></div></div>
</div>
<div id="testpercentmargin">
  <div><div></div></div>
  <div class="rel"><div></div></div>
  <div class="rtl"><div></div></div>
  <div class="rel rtl"><div></div></div>
</div>
<div id="testabsolutemargin">
  <div><div></div></div>
  <div class="rel"><div></div></div>
  <div class="rtl"><div></div></div>
  <div class="rel rtl"><div></div></div>
</div>
<div id="testpercentpadding">
  <div><div></div></div>
  <div class="rel"><div></div></div>
  <div class="rtl"><div></div></div>
  <div class="rel rtl"><div></div></div>
</div>
<div id="testabsolutepadding">
  <div><div></div></div>
  <div class="rel"><div></div></div>
  <div class="rtl"><div></div></div>
  <div class="rel rtl"><div></div></div>
</div>
<div id="testborderparent">
  <div><div></div></div>
  <div class="rel"><div></div></div>
  <div class="rtl"><div></div></div>
  <div class="rel rtl"><div></div></div>
</div>
<div id="testborderkid">
  <div><div></div></div>
  <div class="rel"><div></div></div>
  <div class="rtl"><div></div></div>
  <div class="rel rtl"><div></div></div>
</div>
</body>
</html>