diff --git a/static/main.css b/static/main.css
index 731370c..e3c42c0 100644
--- a/static/main.css
+++ b/static/main.css
@@ -122,7 +122,7 @@ form {
 
 video {
     width: 900px;
-    max-width: 90vw;
+    max-width: 90vmin;
 }
 
 .video img {
@@ -165,7 +165,7 @@ textarea {
     position: relative;
     top: -40px;
     width: 893px;
-    max-width: 89vw;
+    max-width: 89vmin;
 }
 
 .progressbar>div {