1 // Single side border-radius

     2 

     3 @mixin border-top-radius($radius) {

     4   border-top-right-radius: $radius;

     5    border-top-left-radius: $radius;

     6 }

     7 @mixin border-right-radius($radius) {

     8   border-bottom-right-radius: $radius;

     9      border-top-right-radius: $radius;

    10 }

    11 @mixin border-bottom-radius($radius) {

    12   border-bottom-right-radius: $radius;

    13    border-bottom-left-radius: $radius;

    14 }

    15 @mixin border-left-radius($radius) {

    16   border-bottom-left-radius: $radius;

    17      border-top-left-radius: $radius;

    18 }