sepiatheme.css

body {
  height: 42em;
}

::-webkit-scrollbar {
  width: 17px;
  height: 17px;
}

::-webkit-scrollbar-track {
  background: #70401d; 
}

::-webkit-scrollbar-thumb {
  background-color: #854c22;
  border: 2px solid #70401d;
}

::-webkit-scrollbar-thumb:hover {
  background-color: #9e5c2b;
}

::-webkit-scrollbar-thumb:active {
  background-color: #b06630;
}

::-webkit-scrollbar-button {
  background-color: #70401d;
  background-repeat: no-repeat;
  background-size: 7px;
  background-position: center;
  height: 17px;
  width: 17px;
}

::-webkit-scrollbar-button:hover {
  background-color: #5c3519;
  background-repeat: no-repeat;
  background-size: 7px;
  background-position: center;
  height: 17px;
  width: 17px;
}

::-webkit-scrollbar-button:active {
  background-color: #4d2c15;
  background-repeat: no-repeat;
  background-size: 7px;
  background-position: center;
  height: 17px;
  width: 17px;
}

::-webkit-scrollbar-button:vertical:decrement {
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='100' height='100' fill='%23bd7340'><polygon points='50,30 100,80 0,80'/></svg>");
}

::-webkit-scrollbar-button:vertical:increment {
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='100' height='100' fill='%23bd7340'><polygon points='0,15 100,15 50,75'/></svg>");
}

::-webkit-scrollbar-button:horizontal:decrement {
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='100' height='100' fill='%23999bff'><polygon points='15,50 75,100 75,0'/></svg>");
}

::-webkit-scrollbar-button:horizontal:increment {
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='100' height='100' fill='%23999bff'><polygon points='15,0 15,100 75,50'/></svg>");
}

::-webkit-scrollbar-corner {
  background-color: #2e2c99;
}