diff --git a/app/assets/stylesheets/framework/common.scss b/app/assets/stylesheets/framework/common.scss
index 0fb9bde1785eba4f95ffc72e229ed20ba9241201..08d84f7748f5293b6c1af7d3b10e80ec7bac85cb 100644
--- a/app/assets/stylesheets/framework/common.scss
+++ b/app/assets/stylesheets/framework/common.scss
@@ -420,3 +420,9 @@ img.emoji {
 .ms-no-clear ::-ms-clear {
   display: none;
 }
+
+/** COMMON POSITIONING CLASSES */
+.position-bottom-0 { bottom: 0; }
+.position-left-0 { left: 0; }
+.position-right-0 { right: 0; }
+.position-top-0 { top: 0; }