body > header {
  position: absolute;
  height: auto;
  min-height: 100%; }

body.old_php_app.monat #content, body.old_php_app.alle_monate #content {
  padding-top: 10px; }
  body.old_php_app.monat #content header, body.old_php_app.alle_monate #content header {
    position: static;
    height: auto; }