nl_tokens: / * https : // github . com / andris9 / stylus - sprite / blob / master / stylus - sprite . js#L283
pl_tokens: function ( ) { // Calculate block size for the image // Use pixel values, or 100% for X axis where needed (repeat:x) this . blockWidth = ( this . repeat === "x" && this [ 'limit-repeat-x' ] || "100%" ) || ( this . align != "block" && "100%" ) || this . width ; this . blockHeight = ( this . repeat == "y" && this [ 'limit-repeat-y' ] ) || this . height ; // Block height can't be lower than image height if ( this . blockHeight < this . height ) this . blockHeight = this . <mask> ; }