diff --git a/src/scss/keyframes/common.scss b/src/scss/keyframes/common.scss
new file mode 100644
index 0000000..ad656fa
--- /dev/null
+++ b/src/scss/keyframes/common.scss
@@ -0,0 +1,8 @@
+@keyframes fadein {
+  0%   { opacity: 0; }
+  100% { opacity: 1; }
+}
+@keyframes fadeout {
+  0%   { opacity: 1; }
+  100% { opacity: 0; }
+}