This is an explanation of the video content.
 Everything to games
Spanning time and space ...
...
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CSS自定义滚动条 
/* For Webkit browsers (Chrome, Safari) */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
  background: #888;
}

::-webkit-scrollbar-thumb:hover {
  background: #555;
}

31 🌐Frontend ↦ CSS开发技巧 __ 29 字
 CSS开发技巧 #2