/* Para navegadores WebKit (Chrome, Safari, Edge) */
::-webkit-scrollbar {
  width: 12px; 
  height: 12px; }

::-webkit-scrollbar-track {
  background: grey; 
  border-radius: 10px;
}

::-webkit-scrollbar-thumb {
  background: limegreen; 
  border-radius: 10px;
  border: 2px solid grey; 
}

::-webkit-scrollbar-thumb:hover {
  background: green; }

/* Para Firefox */
html {
  scrollbar-width: thin;   
	scrollbar-color: limegreen #f1f1f1; 
}