--- /dev/null
+@charset "UTF-8";
+
+/// Provides a concise, one-line method for setting `border-radius` on both the
+/// top-left and top-right of a box.
+///
+/// @argument {number (with unit)} $radii
+///
+/// @example scss
+/// .element {
+/// @include border-top-radius(4px);
+/// }
+///
+/// // CSS Output
+/// .element {
+/// border-top-left-radius: 4px;
+/// border-top-right-radius: 4px;
+/// }
+
+@mixin border-top-radius($radii) {
+ border-top-left-radius: $radii;
+ border-top-right-radius: $radii;
+}
+
+/// Provides a concise, one-line method for setting `border-radius` on both the
+/// top-right and bottom-right of a box.
+///
+/// @argument {number (with unit)} $radii
+///
+/// @example scss
+/// .element {
+/// @include border-right-radius(3px);
+/// }
+///
+/// // CSS Output
+/// .element {
+/// border-bottom-right-radius: 3px;
+/// border-top-right-radius: 3px;
+/// }
+
+@mixin border-right-radius($radii) {
+ border-bottom-right-radius: $radii;
+ border-top-right-radius: $radii;
+}
+
+/// Provides a concise, one-line method for setting `border-radius` on both the
+/// bottom-left and bottom-right of a box.
+///
+/// @argument {number (with unit)} $radii
+///
+/// @example scss
+/// .element {
+/// @include border-bottom-radius(2px);
+/// }
+///
+/// // CSS Output
+/// .element {
+/// border-bottom-left-radius: 2px;
+/// border-bottom-right-radius: 2px;
+/// }
+
+@mixin border-bottom-radius($radii) {
+ border-bottom-left-radius: $radii;
+ border-bottom-right-radius: $radii;
+}
+
+/// Provides a concise, one-line method for setting `border-radius` on both the
+/// top-left and bottom-left of a box.
+///
+/// @argument {number (with unit)} $radii
+///
+/// @example scss
+/// .element {
+/// @include border-left-radius(1px);
+/// }
+///
+/// // CSS Output
+/// .element {
+/// border-bottom-left-radius: 1px;
+/// border-top-left-radius: 1px;
+/// }
+
+@mixin border-left-radius($radii) {
+ border-bottom-left-radius: $radii;
+ border-top-left-radius: $radii;
+}