From f33c7cf1914795be3304c21d1c0b9438b0cfa884 Mon Sep 17 00:00:00 2001
From: Alex Shevchenko <shevaroller@gmail.com>
Date: Wed, 13 Dec 2017 15:50:02 -0600
Subject: [PATCH] fix(slider): prevent slider thumb from getting cropped
 (#8061)

Slider thumb may sometimes get cropped by a scale transformation.
Removing backface visibility ensures that the thumb is painted correctly.
---
 src/lib/slider/slider.scss | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/lib/slider/slider.scss b/src/lib/slider/slider.scss
index edcf83304b87..6be9e92366f2 100644
--- a/src/lib/slider/slider.scss
+++ b/src/lib/slider/slider.scss
@@ -393,6 +393,10 @@ $mat-slider-focus-ring-size: 30px !default;
     left: 50%;
   }
 
+  .mat-slider-thumb {
+    @include backface-visibility(hidden);
+  }
+
   .mat-slider-thumb-label {
     bottom: -$mat-slider-thumb-label-size / 2;
     left: -($mat-slider-thumb-label-size + $mat-slider-thumb-arrow-gap);