<!DOCTYPE html>
<html>
<head>
    <style>
        body {
            margin: 0;
        }
        
        #scroller {
		    direction: rtl;
            overflow-x: scroll;
            margin: 10px;
            height: 300px;
            width: 300px;
        }
        
        .contents {
		    width: 200%;
		    height: 100%;
			background-image: linear-gradient(to right, red, red 50%, green 50%, green);
        }

        .scrollbar-hider {
            position: absolute;
            width: 300px;
            height: 16px;
            left: 10px;
            top: calc(310px - 16px);
            background-color: gray;
        }
    </style>
</head>
<body>
    <div id="scroller">
        <div class="contents"></div>
    </div>
    <div class="scrollbar-hider"></div>
</body>
</html>