added loader to imagelist

themes/autumn.css

@@ -1,14 +1,22 @@
 @import url("https://fonts.googleapis.com/css2?family=Playfair+Display:wght@400;500;600;700;800;900&display=swap");
 
 * {
-  --color1: #FF7F50; /* Coral */
-  --color2: #D2691E; /* Chocolate */
-  --color3: #8B4513; /* SaddleBrown */
-  --color4: #FFA07A; /* LightSalmon */
-  --bcolor1: #FFF8DC; /* Cornsilk */
-  --bcolor2: #2F4F4F; /* DarkSlateGray */
-  --bcolor3: #3E2723; /* Darker brown */
-  --bcolor4: #4E342E; /* Slightly lighter brown */
+  --color1: #FF7F50;
+  /* Coral */
+  --color2: #D2691E;
+  /* Chocolate */
+  --color3: #8B4513;
+  /* SaddleBrown */
+  --color4: #FFA07A;
+  /* LightSalmon */
+  --bcolor1: #FFF8DC;
+  /* Cornsilk */
+  --bcolor2: #2F4F4F;
+  /* DarkSlateGray */
+  --bcolor3: #3E2723;
+  /* Darker brown */
+  --bcolor4: #4E342E;
+  /* Slightly lighter brown */
 }
 
 .navbar {
@@ -102,6 +110,54 @@
   font-family: "Playfair Display", serif;
 }
 
+.loader,
+.loader:before,
+.loader:after {
+  border-radius: 50%;
+  width: 2.5em;
+  height: 2.5em;
+  animation-fill-mode: both;
+  animation: bblFadInOut 1.8s infinite ease-in-out;
+}
+
+.loader {
+  color: var(--bcolor2);
+  font-size: 7px;
+  position: relative;
+  text-indent: -9999em;
+  transform: translateZ(0);
+  animation-delay: -0.16s;
+}
+
+.loader:before,
+.loader:after {
+  content: '';
+  position: absolute;
+  top: 0;
+}
+
+.loader:before {
+  left: -3.5em;
+  animation-delay: -0.32s;
+}
+
+.loader:after {
+  left: 3.5em;
+}
+
+@keyframes bblFadInOut {
+
+  0%,
+  80%,
+  100% {
+    box-shadow: 0 2.5em 0 -1.3em
+  }
+
+  40% {
+    box-shadow: 0 2.5em 0 0
+  }
+}
+
 body {
   color: var(--bcolor1);
   background-color: var(--bcolor3);
@@ -109,4 +165,4 @@ body {
   font-optical-sizing: auto;
   font-weight: 400;
   font-style: normal;
-}
+}