Note: if you want to have a horizontal scroll-bar appear on an element, fix the width of that element, put the `overflow` property to `auto` and set the width of its child element to a value greater than the width of the parent element.
Element scrollLeft Property Syntax:
element.scrollLeft; element.scrollLeft = newValue;
Element scrollLeft Property Input Value
The value we set for this property is an integer value which represents the number of pixels the target element should scroll horizontally.
Element scrollLeft Property Return Value
The return value of this method is the current number of pixels that the element scrolled horizontally.