.radius- all corners.round-ellipse- all corners but all the way to create an ellipse (for a circle combine with.ratio-1-by-1).radius-top.radius-bottom.radius-left.radius-right.radius-top-left.radius-bottom-left.radius-top-right.radius-bottom-right
.radius-small- all corners.radius-top-small.radius-bottom-small.radius-left-small.radius-right-small.radius-top-left-small.radius-bottom-left-small.radius-top-right-small.radius-bottom-right-small
.radius-large- all corners.radius-top-large.radius-bottom-large.radius-left-large.radius-right-large.radius-top-left-large.radius-bottom-left-large.radius-top-right-large.radius-bottom-right-large
.no-radius- all corners.no-radius-top.no-radius-bottom.no-radius-left.no-radius-right.no-radius-top-left.no-radius-bottom-left.no-radius-top-right.no-radius-bottom-right