@mixin timeline-item-arrow-size-variant($top-offset, $arrow-width) {

top: $top-offset;
right: -$arrow-width;

border: {
  top: $arrow-width solid transparent;
  left: {
    width: $arrow-width;
    style: solid;
  }
  right: {
    width: 0;
    style: solid;
  }
  bottom: $arrow-width solid transparent;
}

}