Rotate 10 degrees clockwise (about center-point).
transform: rotate(10deg);
Rotate 10 degrees anticlockwise (about center-point).
transform: rotate(-10deg);
Rotate 0.5 radians anticlockwise (about center-point).
transform: rotate(-0.5rad);
Translate and then rotate (about top-left corner).
transform: translate(100px, 100px) rotate(10deg);
transform-origin: left top;