apply button class and change some properties

templates/custom/header.tmpl

@@ -8,7 +8,7 @@
         --card-border-radius: 0;
         --button-border-radius: 4px;
         --main-font-weight: 500;
-        --cards-length: 600px;
+        --cards-length: 90%;
 
         --fonts-proportional: -apple-system,"Segoe UI",system-ui,"Roboto","Helvetica Neue","Arial";
         --fonts-monospace: "SFMono-Regular","Menlo","Monaco","Consolas","Liberation Mono","Courier New",monospace,var(--fonts-emoji);
@@ -179,7 +179,7 @@
         user-select: none;
     }
 
-    .button-default {
+    .button, .button-default {
         display: inline-block;
         text-decoration: none;
         font-weight: 500;
@@ -216,7 +216,7 @@
     }
 
     @media screen and (max-width: 768px) {
-        .card.layout-card {
+        .page-content, .card.layout-card {
             width: 80%;
         }
     }