In fact, the layer is always located at the bottom through js, mostly used to prompt the effect
<Body onscroll = "onboot ()" onload = "onboot ()"> <p style = "position: absolute; left: 10; top: 30; width: 126; background: green "id = bt> <style> table {border-top: 6 solid blue; border-left: 6 solid lime; border-right: 6 solid orange; border-bottom: 6 solid pink; border-collapse: collapse;} td {border-right: 1 solid yellow; border-bottom: 1 solid cyan; width: 50px; border-collapse: collapse ;} </style> <table cellpadding = 0 ce Llspacing = 0> <tr> <td> <td> </table> </p> <p> aa <p> aa <p> aa <p> aa <p> aa <script language = "JavaScript"> <! -- Function onboot () {bt. style. top = document. body. scrollTop + document. body. clientHeight-bt.offsetHeight;} // --> SCRIPT
[Ctrl + A select all Note: If you need to introduce external Js, You need to refresh it to execute]
Note: The Code does not comply with the standards. You can modify the code as needed.