diff --git a/src/components/slider/slider.scss b/src/components/slider/slider.scss
index c4ff8f4734d..888d8f1e7dd 100644
--- a/src/components/slider/slider.scss
+++ b/src/components/slider/slider.scss
@@ -54,6 +54,10 @@ md-slider {
   margin-right: 4px;
   padding: 0;
 
+  *, *:after {
+    box-sizing: border-box;
+  }
+
   .md-slider-wrapper {
     position: relative;
   }