diff --git a/assets/css/baseof.css b/assets/css/baseof.css
index 215a908..68fe3f5 100644
--- a/assets/css/baseof.css
+++ b/assets/css/baseof.css
@@ -167,3 +167,15 @@ button {
     font-size: 1.25rem;
   }
 }
+
+@media only screen and (min-width: 1440px) {
+  main {
+    width: 80%;
+  }
+}
+
+@media only screen and (min-width: 1920px) {
+  main {
+    width: 55%;
+  }
+}
diff --git a/assets/css/partials.css b/assets/css/partials.css
index fbc4ec6..fb6cd83 100644
--- a/assets/css/partials.css
+++ b/assets/css/partials.css
@@ -416,3 +416,15 @@ hr {
     display: initial;
   }
 }
+
+@media only screen and (min-width: 1440px) {
+  header {
+    width: 80%;
+  }
+}
+
+@media only screen and (min-width: 1920px) {
+  header {
+    width: 55%;
+  }
+}