Add bounds for content box

diff --git a/index.html b/index.html
index 200177bba255d3b3ed25ff7d247a498029c2c306..051e4a82f129a7df411aea0538c5704ccb370942 100644 (file)
--- a/index.html
+++ b/index.html
@@ -71,7 +71,12 @@
     }
 
     #content {
+      min-block-size: 5rem;
       block-size: 20rem;
+      min-inline-size: 100%;
+      max-inline-size: calc(100dvi - 16px);
+      align-self: center;
+      white-space: nowrap;
     }
 
     .ciphertext-container {