Made the tabs look better

assets/sass/sentry.sass

@@ -1,4 +1,8 @@
+$tab-bar-height: 50px
+
 body
+  margin: 0
+  padding: $tab-bar-height 0 0
   background: white
   font-size: 18px
 
@@ -33,6 +37,42 @@ button
 
 .container.fluid
   max-width: 100%
+  margin: 0
+
+#wrapper
+  margin-top: 25px
+
+#tab-bar
+  position: fixed
+  top: 0
+  left: 0
+  z-index: 10
+  width: 100%
+  height: $tab-bar-height
+  margin: 0
+  padding: 0
+  background: #eee
+  border-bottom: 1px solid #bbb
+  box-shadow: 0 1px 2px rgba(0, 0, 0, .25)
+
+  .row
+    display: relative
+
+  .tab-button
+    float: left
+    height: 50px
+    margin: 0
+    background-color: #eee
+    border: none
+    border-right: 1px solid #999
+    border-radius: 0
+    color: #212121
+    font-size: 2rem
+    font-weight: bold
+    transition: all 230ms ease-in-out
+
+    &.active
+      background-color: white
 
 .component-display
   display: none