Fix header image and alignment

public/css/icinga/header-elements.less

@@ -12,6 +12,7 @@
 }
 
 #logo img {
+  width: 100px;
   margin-left: 1.5em;
   margin-top: 0.8em;
 }

public/css/icinga/login.less

@@ -6,19 +6,13 @@
   height: 100%;
 
   .logo {
-    position: absolute;
-    top: 0;
-    left: 0;
-    right: 0;
-    bottom: 75%;
     text-align: center;
   }
 
   .image {
-    position: absolute;
-    bottom: 1em;
-    left: 0px;
-    right: 0px;
+    padding-top: 5%;
+    margin-left: auto;
+    margin-right: auto;
     text-align: center;
   }
 
@@ -70,7 +64,7 @@
   form {
     margin-left: auto;
     margin-right: auto;
-    width: 19.5em;
+    width: 18em;
     font-size: 20px;
   }
 

public/css/icinga/menu.less

@@ -216,13 +216,13 @@
   border: none;
   width: 100%;
   border-radius: 0;
-  height: 2.7em;
+  height: 2.8em;
   display: block;
   outline: none;
   background-color: transparent;
   background-image: url('../img/icons/search.png');
   background-repeat: no-repeat;
-  background-position: 1.2em center;
+  background-position: 1.15em center;
   color: @colorTextDefault;
 }
 

public/css/icinga/setup.less

@@ -8,13 +8,10 @@
 #setup {
   .header {
     width: 100%;
-    height: 5.4em;
+    height: 5.5em;
     background-color: @icinga-blue;
     border-bottom: 1px solid #d9d9d9d;
     text-align: center;
-    -webkit-box-shadow: 0 3px 7px -3px #000;
-    -moz-box-shadow: 0 3px 7px -3px #000;
-    box-shadow: 0 3px 7px -3px #000;
 
 
     img {