Perlschnur should fit into width

Author: krasch

style/layout.css

@@ -221,6 +221,8 @@ Layout journey container (containing calendar and summary)
 *********************************************************/
 
 #journey {
+    width: 100%;
+
     display: flex;
     flex-direction: column;
     align-items: center;
@@ -263,7 +265,8 @@ Layout for journey summary
 ************************************************/
 
 #summary {
-    width: min(95%, 350px);
+    min-width: min(350px, 90%);
+    max-width: 450px;
 
     display: flex;
     flex-direction: column;