[css-position] Add caption to the table.

Author: tabatkins

css-position/Overview.bs

@@ -1425,7 +1425,11 @@ The width of absolute, page or fixed positioned, non-replaced elements</h3>
 <table class=data id='abspos-auto'>
   <style scoped>
   #abspos-auto ul { list-style-type: none; }
+  #abspos-auto caption { caption-side: bottom; }
   </style>
+  <caption>
+    Summary of rules for <code>dir=ltr</code> in horizontal writing modes
+  </caption>
   <colgroup span=5></colgroup>
   <colgroup span=1></colgroup>
   <thead>

css-position/Overview.html

@@ -2294,8 +2294,13 @@ <h3 class="heading settled" data-level="8.1" id="abs-non-replaced-width"><span c
 
     <style scoped="">
   #abspos-auto ul { list-style-type: none; }
+  #abspos-auto caption { caption-side: bottom; }
   </style>
 
+    <caption>
+    Summary of rules for <code>dir=ltr</code> in horizontal writing modes
+  </caption>
+  
     <colgroup span="5"></colgroup>
 
     <colgroup span="1"></colgroup>