diff --git a/src/application/views/backend/header.php b/src/application/views/backend/header.php
index 9f0fc0ca..b1a13cbd 100755
--- a/src/application/views/backend/header.php
+++ b/src/application/views/backend/header.php
@@ -107,7 +107,7 @@
-
diff --git a/src/assets/css/general.css b/src/assets/css/general.css
index e6621114..f66bf760 100644
--- a/src/assets/css/general.css
+++ b/src/assets/css/general.css
@@ -322,3 +322,60 @@ li.language:hover {
.ui-timepicker-div.ui-timepicker-oneLine .ui_tpicker_unit_hide:before {
display: none;
}
+
+/* LOADING SPINNER
+ ------------------------------------------------------------------------- */
+
+.is-loading {
+ position: relative;
+}
+
+.is-loading:before,
+.is-loading:after {
+ content: '';
+ position: absolute;
+ top: 50%;
+ left: 50%;
+}
+
+.animation:after {
+ width: 60px;
+ height: 60px;
+ margin: -25px 0 0 -25px;
+
+ border: 5px solid rgba(0, 0, 0, .4);
+ border-radius: 50px;
+}
+
+.animation:after {
+ border-bottom-color: transparent;
+ animation: spin 1s infinite linear;
+}
+
+@keyframes spin {
+ from {
+ transform: rotate(0deg);
+ }
+ to {
+ transform: rotate(360deg);
+ }
+}
+
+@keyframes spin-reverse {
+ from {
+ transform: rotate(0deg);
+ }
+ to {
+ transform: rotate(-360deg);
+ }
+}
+
+.any-element {
+ width: 60px;
+ height: 60px;
+ position: fixed;
+ left: 50vw;
+ top: 50vh;
+ margin-left: -30px;
+ margin-bottom: -30px;
+}