Iframe takes the whole screen width

Author: nbonfils

src/index.css

@@ -89,6 +89,12 @@ a:hover {
 iframe {
     border: 10px solid #CCC;
     border-radius: 20px;
+    width: 98vw;
+    position: relative;
+    left: 50%;
+    right: 50%;
+    margin-left: -49vw;
+    margin-right: -49vw;
 }
 
 .card {
@@ -247,4 +253,4 @@ input[type="range"]::-moz-range-thumb {
 input[type="range"]:focus::-moz-range-thumb{
   outline: 3px solid #ffaa00;
   outline-offset: 0.125rem;
-}
+}