Remove some old styles

src/scss/style.scss

@@ -174,44 +174,10 @@ button {
     height: 100%;
 }
 
-/* End of new things */
 .dynmap .map .tile img, img {
     image-rendering: pixelated;
 }
 
-/*******************
- * Alerts are pretty.
- */
-
-.alertbox {
-    position: fixed;
-    width: 50%;
-    z-index: 999;
-
-    top: 0;
-    left: 0;
-    right: 0;
-
-    text-align: center;
-    font-size: 16px;
-    font-weight: bold;
-
-    color: #fff;
-    background: #c00;
-
-    border-color: #a00;
-
-    margin: auto;
-    padding: 8px;
-}
-
-.alertbox {
-    border-style: solid;
-    border-width: 0 1px 1px 1px;
-    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.4);
-    border-radius: 0 0 3px 3px;
-}
-
 .clock {
 	@extend %panel;
 	position: relative;