first commit

media/vendor/fontawesome-free/scss/_rotated-flipped.scss

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+// rotating + flipping icons
+// -------------------------
+
+.#{$fa-css-prefix}-rotate-90 {
+  transform: rotate(90deg);
+}
+
+.#{$fa-css-prefix}-rotate-180 {
+  transform: rotate(180deg);
+}
+
+.#{$fa-css-prefix}-rotate-270 {
+  transform: rotate(270deg);
+}
+
+.#{$fa-css-prefix}-flip-horizontal {
+  transform: scale(-1, 1);
+}
+
+.#{$fa-css-prefix}-flip-vertical {
+  transform: scale(1, -1);
+}
+
+.#{$fa-css-prefix}-flip-both,
+.#{$fa-css-prefix}-flip-horizontal.#{$fa-css-prefix}-flip-vertical { 
+  transform: scale(-1, -1);
+}
+
+.#{$fa-css-prefix}-rotate-by {
+  transform: rotate(var(--#{$fa-css-prefix}-rotate-angle, none));
+}