1 <html><head> 2 3 <meta content="text/html; charset=windows-1251" http-equiv="Content-Type"> 4 <style> 5 .d1{position:fixed;top:50%;right:50%;z-index:2;overflow:hidden;} 6 .d2{position:fixed;bottom:5em;left:50;z-index:2;overflow:hidden;} 7 .o {background:green;height:40px;width:200px;} 8 .t { width:2000px; height:198px;background-color: lightgray; border: 1px solid blue;} 9 body { margin: 0px; } 10 </style> 11 <script> 12 function remove_fixed() 13 { 14 document.getElementById("d1").style.position = "static"; 15 } 16 17 function change_fixed() 18 { 19 document.getElementById("d2").style.bottom = "10em"; 20 } 21 22 </script> 23 </head> 24 <body class="Gradient"> 25 <div class="d1" id="d1"><div class="o">This is a test</div></div> 26 <div class="d2" id="d2"><div class="o">This is a test</div></div> 27 <div class="t" onclick="remove_fixed();"> 28 000 29 </div> 30 <div class="t"> 31 200<br> 32 <button onclick="remove_fixed();">remove fixed</button> 33 </div> 34 <div class="t"> 35 400<br> 36 <button onclick="change_fixed();">change fixed</button> 37 </div> 38 <div class="t"> 39 600 40 </div> 41 <div class="t"> 42 800 43 </div> 44 <div class="t"> 45 1000 46 </div> 47 <div class="t"> 48 1200 49 </div> 50 <div class="t"> 51 1400 52 </div> 53 <div class="t"> 54 1600 55 </div> 56 <div class="t"> 57 1800 58 </div> 59 <div class="t"> 60 2000 61 </div> 62 <div class="t"> 63 2200 64 </div> 65 <div class="t"> 66 2400 67 </div> 68 <div class="t"> 69 2600 70 </div> 71 <div class="t"> 72 2800 73 </div> 74 <div class="t"> 75 3000 76 </div> 77 <div class="t"> 78 3200 79 </div> 80 <div class="t"> 81 3400 82 </div> 83 <div class="t"> 84 3600 85 </div> 86 <div class="t"> 87 3800 88 </div> 89 <div class="t"> 90 4000 91 </div> 92 </body></html> 93