1 files changed, 15 insertions, 0 deletions
diff --git a/_scss/utilities/_boxsizing.scss b/_scss/utilities/_boxsizing.scss
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+++ b/_scss/utilities/_boxsizing.scss
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+// Box Sizing
+//
+// The box-sizing property in CSS controls how the box model
+// is handled for the element it applies to.
+//
+// Values: content-box | border-box
+// Default: content-box
+//
+// https://www.w3.org/TR/css-ui-3/#box-sizing
+@mixin box-sizing($value: content-box) {
+  -webkit-box-sizing: $value;
+     -moz-box-sizing: $value;
+      -ms-box-sizing: $value;
+          box-sizing: $value;
+}