offsetLeft property
The HTMLElement.offsetLeft read-only property returns the number of
pixels that the upper left corner of the current element is offset to
the left within the HTMLElement.offsetParent node.
For block-level elements, offsetTop, offsetLeft, offsetWidth, and
offsetHeight describe the border box of an element relative to the
offsetParent.
However, for inline-level elements (such as span) that can wrap from
one line to the next, offsetTop and offsetLeft describe the positions
of the first border box (use Element.getClientRects to get its width
and height), while offsetWidth and offsetHeight describe the
dimensions of the bounding border box (use
Element.getBoundingClientRect to get its position). Therefore, a box
with the left, top, width and height of offsetLeft, offsetTop,
offsetWidth and offsetHeight will not be a bounding box for a span
with wrapped text.
Implementation
external int get offsetLeft;