added 3 new animations, simple css change

static/main.css

@@ -1,8 +1,23 @@
-body {
-    background: black;
-    color: white;
+:root {
+    --bg-color:  #403F3C;
+    --primary-color: #ccc;
 }
 
+html {
+    background: var(--bg-color);
+}
+
+
+body {
+    padding-top: 20px;
+    width: 80%;
+    height: 100%;
+    color: var(--primary-color);
+    margin: auto;
+    font-family: "monospace";
+}
+
+
 .controls {
     display: flex;
     width: 40em;
@@ -10,14 +25,21 @@ body {
 
 fieldset {
     flex: auto;
+    margin-right: 5px;
 }
 
 .buttons {
     width: 30em;
+    
 }
 
 input.button_color {
     width: 6em;
+    margin: 4px;
+    border: none;
+    padding: 5px 10px;
+    /* border-radius: 5px; */
+    
 }
 
 .button_color_white {