The all property is shorthand for reseting all CSS properties except direction and unicode-bidi.
object.style.all = "value";
<'all'> = initial | inherit | unset | revert
Represents the computed value of the property on the element's parent.
Represents the value specified as the property's initial value.
Acts as either inherit or initial, depending on whether the property is inherited or not.
Depends on the origin to which the declaration belongs:
World Wide Web Consortium (W3C)