improved CSS

Signed-off-by: Stephan Richter <s.richter@srsoftware.de>

web/src/main/resources/web/css/bloodshed.css

@@ -53,6 +53,10 @@ footer {
   margin: 5px;
 }
 
+img {
+	max-width: 100%;
+}
+
 nav {
     position: sticky;
     z-index: 100;

web/src/main/resources/web/css/default.css

@@ -53,6 +53,10 @@ footer {
   margin: 5px;
 }
 
+img {
+	max-width: 100%;
+}
+
 nav {
     position: sticky;
     z-index: 100;

web/src/main/resources/web/css/winter.css

@@ -53,6 +53,10 @@ footer {
   margin: 5px;
 }
 
+img {
+	max-width: 100%;
+}
+
 nav {
   position: sticky;
   z-index: 100;