.aclrcanvas {
position: fixed;
top: 50%;
transform: translateY(-50%);
/*display: none;*/
/*border: 1px solid; */
border: none;
width: 4vw; 
height: 100vh;
	/*Adding something*/
z-index: 999;
}

.acleft {
float: left;
left: 0;
}

.acright {
right: 0;
float: right;
}