#mycustomscroll {
/* percentage width without the fix*/
width: 95%;
height: 300px;
overflow: auto;
/* IE overflow fix, position must be relative or absolute*/
position: relative;
margin: 0.3em 0;
padding: 0 5px;
}

#right-side-scrolling {
/* percentage width without the fix*/
/*width: 95%;*/
height: 300px;
overflow: auto;
/* IE overflow fix, position must be relative or absolute*/
position: relative;
margin: 0.3em 0;
padding: 0 5px;
}