| <!DOCTYPE html> |
| <title>position:sticky elements should properly interact with margins</title> |
| <link rel="match" href="position-sticky-margins-ref.html" /> |
| <link rel="help" href="https://www.w3.org/TR/css-position-3/#sticky-pos" /> |
| <meta name="assert" content="position:sticky elements should ignore margins when sticking, but consider them when making sure sticky elements do not escape their containing block" /> |
| |
| <style> |
| .group { |
| display: inline-block; |
| position: relative; |
| width: 180px; |
| height: 400px; |
| } |
| |
| .scroller { |
| position: relative; |
| width: 150px; |
| height: 300px; |
| overflow-y: scroll; |
| overflow-x: hidden; |
| } |
| |
| .holder { |
| width: 130px; |
| height: 200px; |
| } |
| |
| .sticky { |
| position: sticky; |
| background-color: green; |
| top: 5px; |
| margin: 15px; |
| } |
| |
| .indicator { |
| left: 15px; |
| position: absolute; |
| background-color: red; |
| } |
| |
| .box { |
| width: 100px; |
| height: 100px; |
| } |
| |
| .padding { |
| height: 300px; |
| } |
| </style> |
| <script> |
| window.addEventListener('load', function() { |
| document.getElementById('scroller1').scrollTop = 0; |
| document.getElementById('scroller2').scrollTop = 60; |
| document.getElementById('scroller3').scrollTop = 120; |
| }); |
| </script> |
| |
| <!-- Before sticking, the margin should be obeyed. --> |
| <div class="group"> |
| <div id="scroller1" class="scroller"> |
| <div class="indicator box" style="top: 15px;"></div> |
| <div class="holder"> |
| <div class="sticky box"></div> |
| </div> |
| <div class="padding"></div> |
| </div> |
| </div> |
| |
| <!-- Whilst stuck, the margin is irrelevant. --> |
| <div class="group"> |
| <div id="scroller2" class="scroller"> |
| <div class="indicator box" style="top: 65px;"></div> |
| <div class="holder"> |
| <div class="sticky box"></div> |
| </div> |
| <div class="padding"></div> |
| </div> |
| </div> |
| |
| <!-- The margin does count when making sure the sticky element does not escape |
| its containing block. --> |
| <div class="group"> |
| <div id="scroller3" class="scroller"> |
| <div class="indicator box" style="top: 100px;"></div> |
| <div class="holder"> |
| <div class="sticky box"></div> |
| </div> |
| <div class="padding"></div> |
| </div> |
| </div> |
| |
| <div>You should see three green boxes above. No red should be visible.</div> |
