Merge pull request #10600 from marcelox/patch-1

Set border-width variable on button-base mixin

diff --cc scss/components/_button.scss
index 48756354b751a173027ad0c42afd4eafa8acd7ca,701918f07756e9284d9c8284e65085702f7699a6..492377f6f3bebe1b2ea1f03d8599ff9ee73f09eb
--- 1/scss/components/_button.scss
--- 2/scss/components/_button.scss
+++ b/scss/components/_button.scss
@@@ -110,9 -104,10 +114,9 @@@ $button-responsive-expanded: false !def
    }
  
    -webkit-appearance: none;
-   border: 1px solid transparent;
+   border: $button-border;
    border-radius: $button-radius;
    transition: $button-transition;
 -
    font-size: map-get($button-sizes, default);
    line-height: 1;
    text-align: center;