Add buttons to scroll to the bottom and top of the website. Two-finger tap or Ctrl+Z to hide/show buttons.
These are versions of this script where the code was updated. Паказаць усе версіі.
双指单击/Ctrl+Z：显示/隐藏状态。
毛玻璃防遮挡
Fix appearing in different windows修复出现在不同窗口
