fixed some html and filename issues, now the pictures work

index.html

@@ -8,7 +8,7 @@
         margin: 0 auto;
         font-family: Tahoma, Verdana, Arial, sans-serif;
     }
-    #latest-still {
+    #latest {
 	width: 100%;
     }
 </style>

take_a_still.py

@@ -11,7 +11,7 @@ if not os.path.exists(index_filename):
     print("The index was lost, so we've restored it.")
 
 # take a picture into the stills folder
-filename = "/stills/" + os.popen("date +%+4Y-%m-%d-%Hh%Mm.jpg").read()
+filename = "/stills/" + os.popen("date +%+4Y-%m-%d-%Hh%Mm.jpg").read().strip()
 
 os.system("libcamera-jpeg -o /var/www/html" + filename)