This is how to create a custom scrollbar in Wix Studio

<style>

/* To customize the scrollbar */

::-webkit-scrollbar {

width: 12px; /* Standard width for the scrollbar */

}

::-webkit-scrollbar-track {

background: #1B1C1D; /* Dark gray background for the scrollbar track */

}

::-webkit-scrollbar-thumb {

background-color: #C2C2C2; /* Gray color for the scrollbar */

border-radius: 6px; /* Rounded corners for the scrollbar */

}

::-webkit-scrollbar-thumb:hover {

background-color: #FF4D02; /* Orange color on hover to provide visual feedback */

}

/* Reset scrollbar to default appearance when less than 750px */

@media (max-width: 750px) {

::-webkit-scrollbar {

width: auto; /* Standard width for the scrollbar */

}

::-webkit-scrollbar-track {

background: none; /* No background for the scrollbar track */

}

::-webkit-scrollbar-thumb {

background-color: transparent; /* No color for the scrollbar */

}

}

</style>

If you have any further question, you can alway write me a message.