Create your thing! Whether it is a text box, column, etc. and give it a CSS class of artdescription or some other unique title. Then take this code and change it as needed for the two background colors (one is the background color for the scrollbar and the other is the color of the scrollbar itself). Also if the CSS class has been changed, you will need to change .artdescription to whatever you have changed the CSS class to.
/* art gallery */
.artdescription {
max-height: 60vh;
overflow-x: hidden;
overflow-y: scroll;
}
.artdescription::-webkit-scrollbar{
width: 14px;
}
.artdescription::-webkit-scrollbar-track{
background: #F9681E;
}
.artdescription::-webkit-scrollbar-thumb{
background: #F9C536;
}