diff --git a/style/main.css b/style/main.css
index 6fd17bb..bf3c205 100644
--- a/style/main.css
+++ b/style/main.css
@@ -193,4 +193,17 @@ footer > a{
     vertical-align: top;
     height: 100%;
 }
-
+.emailinbox {
+    display: flex;
+    height: 100%;
+}
+.emailinbox-headers {
+    width: calc(100% - 20em);
+    overflow: auto;
+}
+.emailinbox-folders {
+    width: 20em;
+    background-color: #e0e0e0;
+    padding: 1em;
+    margin-right: -0.5em;
+}