| <!DOCTYPE html> | 
 | <link rel="help" href="https://drafts.csswg.org/css-anchor-1/#determining"> | 
 | <link rel="author" href="mailto:kojii@chromium.org"> | 
 | <script src="/resources/testharness.js"></script> | 
 | <script src="/resources/testharnessreport.js"></script> | 
 | <script src="/resources/check-layout-th.js"></script> | 
 | <script src="support/test-common.js"></script> | 
 | <style> | 
 | .cb { | 
 |   position: relative; | 
 | } | 
 | .not-positioned-cb { | 
 |   transform: translate(0, 0);  /* Make it a containing block. */ | 
 | } | 
 | .anchor1 { | 
 |   anchor-name: --a1; | 
 | } | 
 | .size5x7 { | 
 |   width: 5px; | 
 |   height: 7px; | 
 |   background: orange; | 
 | } | 
 | .size9x11 { | 
 |   width: 9px; | 
 |   height: 11px; | 
 |   background: blue; | 
 | } | 
 | .target { | 
 |   position: absolute; | 
 | } | 
 | </style> | 
 | <!-- | 
 |   To determine the target anchor element, find the last acceptable anchor | 
 |   element el in tree order. | 
 |   https://drafts.csswg.org/css-anchor-1/#determining | 
 | --> | 
 | <body onload="checkLayoutForAnchorPos('.target')"> | 
 |   <div class="cb"> | 
 |     <div class="anchor1 size5x7"></div> | 
 |     <div class="anchor1 size9x11"></div> | 
 |     <div class="target" style="left: anchor(--a1 right)" data-offset-x=9></div> | 
 |   </div> | 
 |  | 
 |   <div class="cb"> | 
 |     <div class="anchor1 size5x7"> | 
 |       <div class="anchor1 size9x11"></div> | 
 |       <div class="target" style="left: anchor(--a1 right)" data-offset-x=9></div> | 
 |     </div> | 
 |     <div class="target" style="left: anchor(--a1 right)" data-offset-x=9></div> | 
 |   </div> | 
 |  | 
 |   <div class="cb"> | 
 |     <div class="anchor1 size5x7 not-positioned-cb"> | 
 |       <div class="anchor1 size9x11"></div> | 
 |       <div class="target" style="left: anchor(--a1 right)" data-offset-x=9></div> | 
 |     </div> | 
 |     <div class="target" style="left: anchor(--a1 right)" data-offset-x=9></div> | 
 |   </div> | 
 | </body> |