fixes #5319: add backface-visibility for webkit skewing

diff --git a/less/mixins.less b/less/mixins.less
index 1466696bc23992f660d23195dd8f8aeb8480cee2..98aa2b8a5838fbf16b0d3640fb4ef1f14c3b7be3 100644 (file)
--- a/less/mixins.less
+++ b/less/mixins.less
@@ -297,6 +297,7 @@
       -ms-transform: skewX(@x) skewY(@y); // See https://github.com/twitter/bootstrap/issues/4885
        -o-transform: skew(@x, @y);
           transform: skew(@x, @y);
+  -webkit-backface-visibility: hidden; // See https://github.com/twitter/bootstrap/issues/5319
 }
 .translate3d(@x, @y, @z) {
   -webkit-transform: translate3d(@x, @y, @z);