1 files changed, 34 insertions, 0 deletions
diff --git a/scss/_animation.scss b/scss/_animation.scss
new file mode 100644
index 0000000000..85156135d1
--- /dev/null
+++ b/scss/_animation.scss
@@ -0,0 +1,34 @@
+//
+// Component animations
+// --------------------------------------------------
+
+.fade {
+  opacity: 0;
+  transition: opacity .15s linear;
+
+  &.in {
+    opacity: 1;
+  }
+}
+
+.collapse {
+  display: none;
+  visibility: hidden;
+
+  &.in {
+    display: block;
+    visibility: visible;
+  }
+  // tr&.in    { display: table-row; }
+  // tbody&.in { display: table-row-group; }
+}
+
+.collapsing {
+  position: relative;
+  height: 0;
+  overflow: hidden;
+  transition: height .35s ease;
+  transition-property: height, visibility;
+  transition-duration: .35s;
+  transition-timing-function: ease;
+}