I searched and found a solution. I found that it is possible to customize the bar with these CSS properties:
Defining properties:
Scroll bar in general:
::-webkit-scrollbar{width:15px; }
Of the buttons (top/bottom):
::-webkit-scrollbar-button{background-color:#bfbfbf; height:15px;}
From the bottom behind the scroll bar:
::-webkit-scrollbar-track-piece {background-color:#e4e4e4;}
From the vertical scroll bar:
::-webkit-scrollbar-thumb:vertical{background-color:#bfbfbf; border-top:1px solid #a4a4a4; border-bottom:1px solid #a4a4a4}
From the horizontal scroll bar:
::-webkit-scrollbar-thumb:horizontal{background-color:black;}
From the bottom button (from the vertical bar):
::-webkit-scrollbar-button:vertical:increment {background-image:url("Imagens/seta-baixo.png");}
From the top button (from the vertical bar):
::-webkit-scrollbar-button:vertical:decrement {background-image:url("Imagens/seta-cima.png");}
Upshot:
The main scroll bar of my Chrome is like this!
– utluiz
What do you define as "traditional"? The standard operating system scroll bar?
– Fabrício Matté
@utluiz: That’s where it is, this bar is not favorable in this case. I need that button for the user to click. But in Chrome it doesn’t have, it renders everything like this.
– Joao Paulo
@Fabríciomatté : I explained in the question.
– Joao Paulo
Ok, it’s clearer now. Chrome’s Canary version already has these buttons again so it should reach stable Chrome soon. If needed immediately, it should be possible to do so by stylising the pseudo-elements
::-webkit-scrollbar-*
– Fabrício Matté