Select Box will not hide Vertical Scroll Bar

Trying to hide vertical scroll bar in a 4-choice Select Box. My css is not working. See attachment for screenshot.

CSS for select is below. Any help appreciated.
R

Code:input[type=text], select {
display: inline-block;
width: 75%;
padding: 5px;
margin: 2px 0;
border: 1px solid #ccc;
border-radius: 4px;
box-sizing: border-box;
font-size: 20px;
font-weight: bold;
background-color: var(--box-bgcolor);
color: blue;
}

select{
overflow-y: auto;
}
Attached Thumbnails