2 <meta name="viewport" content="width=device-width">
4 .d1 {position:fixed; top:5; right:5; z-index:2; overflow:hidden;}
5 .o {background:green; height:40px; width:200px;}
6 .t { width:2000px; height:198px; background-color: lightgray; border: 1px solid blue;}
13 function remove_child()
15 fixed = document.getElementById("d1");
16 fixed.parentElement.removeChild(fixed);
21 document.body.appendChild(fixed);
27 <div class="d1" id="d1"><div class="o">This is a test</div></div>
33 <button onclick="remove_child();">remove fixed</button>
37 <button onclick="add_child();">add fixed</button>