MINOR: fixing mobile logo (#358)

diff --git a/css/styles.css b/css/styles.css
index abb185d..1b0030c 100644
--- a/css/styles.css
+++ b/css/styles.css
@@ -2484,9 +2484,9 @@
         margin-top: 16rem;
     }
     .logo-link {
-        width: 170px;
+        width: 100px;
         height: 50px;
-        background-size: 168px auto;
+        background-size: 93px auto;
         background-repeat: no-repeat;
     }
     .content {