diff --git a/public/css/icinga/defaults.less b/public/css/icinga/defaults.less
deleted file mode 100644
index aacb1a30b..000000000
--- a/public/css/icinga/defaults.less
+++ /dev/null
@@ -1,134 +0,0 @@
-/*! Icinga Web 2 | (c) 2013-2015 Icinga Development Team | GPLv2+ */
-
-/* Color definitions */
-@colorMainLayout: #049baf;
-@colorMainBackground: #fff;
-@colorMainForeground: #666;
-@colorMainLink: #222;
-@colorSecondary: #f9f9f9;
-
-
-@colorGray: #f9f9f9;
-@colorLinkDefault: #049baf;
-@colorTextDefault: @colorMainForeground;
-@colorTextDarkDefault: #555;
-@colorOk: #44bb77;
-@colorWarning: #ffaa44;
-@colorWarningHandled: #ffcc66;
-@colorCritical: #ff5566;
-@colorCriticalHandled: #ff99aa;
-@colorUnknown: #aa44ff;
-@colorUnknownHandled: #cc77ff;
-@colorUnreachable: #aa44ff;
-@colorUnreachableHandled: #cc77ff;
-@colorPending: #77aaff;
-@colorInvalid: #999;
-@colorFormNotificationInfo: #77aaff;
-@colorFormNotificationWarning: #ffaa44;
-@colorFormNotificationError: #ff5566;
-
-/* deprecated */
-@colorPetrol: @colorMainLayout;
-
-/*** Base rules ***/
-* {
-  font-size: 100%;
-}
-
-html, body {
-  height: 100%;
-}
-
-html {
-  background: #fff;
-}
-
-img {
-  border: none;
-}
-
-/*
-TODO: -xy-text-resize-dings
-*/
-
-html, body, form {
-  /* TODO: Really 0 ? */
-  margin: 0;
-  padding: 0;
-}
-
-table {
-  border-collapse: collapse;
-  border: none;
-}
-
-body {
-  font-family: Calibri, Helvetica, sans-serif;
-  color: #666;
-  background-color: white;
-}
-
-a {
-  color: @colorMainLink;
-  text-decoration: none;
-
-  &:hover {
-    text-decoration: underline;
-  }
-}
-
-h1, h2, h3, h4, h5, h6 {
-  font-size: 1em;
-  padding: 0.3em 0em;
-  margin: 0.7em 0 0.5em 0;
-  color: @colorMainForeground;
-  border-bottom: 1px dotted #aaa;
-
-  a {
-    text-decoration: none;
-    color: inherit;
-
-    &:hover {
-      text-decoration: underline;
-    }
-  }
-}
-
-h5 {
-  font-size: 0.83em;
-}
-
-h6 {
-  font-size: 0.75em;
-}
-
-h1 {
-  border-bottom: 3px solid #666;
-  font-variant: small-caps;
-  font-weight: bold;
-}
-
-h2 {
-  border-bottom: 1px solid #888;
-  font-variant: small-caps;
-  font-weight: normal;
-}
-
-h3 {
-  font-weight: normal;
-  border-bottom: 1px solid #aaa;
-}
-
-button {
-  font-family: inherit;
-}
-
-#fontsize-calc {
-  display: none;
-  width: 1000em;
-  height: 1em;
-  font-size: 1em;
-  position: absolute;
-  top: -2em;
-}
-/*** END of Base rules */