def absolute_layout(context, placeholder, containing_block, fixed_boxes,
                    bottom_space, skip_stack):
    """Set the width of absolute positioned ``box``."""
    assert not placeholder._layout_done
    box = placeholder._box
    new_box, resume_at = absolute_box_layout(
        context, box, containing_block, fixed_boxes, bottom_space, skip_stack)
    placeholder.set_laid_out_box(new_box)
    if resume_at:
        context.broken_out_of_flow[placeholder] = (
            box, containing_block, resume_at)
Set the width of absolute positioned ``box``.
weasyprint/layout/absolute.py