.rotate-15 {
  transform: rotate(15deg);
}

.rotate-n-15 {
  transform: rotate(-15deg);
}

• [F] _animation.scss
  Delete
• [F] _background.scss
  Delete
• [F] _border.scss
  Delete
• [F] _display.scss
  Delete
• [F] _progress.scss
  Delete
• [F] _rotate.scss
  Delete
• [F] _text.scss
  Delete