fit-content-block-size-fixedpos-ref.html (248B)
1 <!DOCTYPE html> 2 <style> 3 #container { 4 height: 90vh; 5 position: fixed; 6 top: 50%; 7 background-color: gold; 8 margin: auto; 9 bottom: 0; 10 } 11 </style> 12 <div id="container"> 13 <div style="height:90vh;width:50px;outline: 2px dotted red;"></div> 14 </div>