При адаптивной верстке меню отображается не правильно

 Все блоки адаптировались, как в уроке, кроме меню. Меню расположено вертикально, но съехало вниз и вправо за пределы хедера. В районе хедера "осталась" лишь Главная. 

* {
  margin: 0;
  padding: 0;
}

body {
  font-size: 1.2em;
  background-color: #fff;
  color: #555;
}

p {
  padding: 0 0 20px 0;
  line-height: 1.7em;
}

input[type="text"], input[type="password"], input[type="search"] {
  color: #5d5d5d;
  width: 60%;
  padding: 8px;
} 

input, textarea {
  outline: none;
  border: none;
  border: solid 1px #f2f2f2;
}

h1, h2 {
  font: normal 170% 'century gothic', arial;
  margin: 0 0 15px 0;
  padding: 15px 0 5px 0;
  color: #000;
}

h2 {
  font-size: 140%;
}

a, a:hover {
  outline: none;
  text-decoration: underline;
  color: #aeb002;
}

ul {
  margin: 2px 0 22px 17px;
}

ul li {
  margin: 0 0 6px 0;
  padding: 0 0 4px 5px;
  line-height: 1.5em;
}

.header {
	background-color: darkslateblue;
	height: 177px;
	font-size: 0.8em;
	margin-left: 0px;
  margin-right: 0px;
	min-width: 900px;
}

.main, .logo, .menubar, .site_content, .footer {
  margin-left: auto;
  margin-right: auto;	
}

.logo {
  width: 880px;
  padding-bottom: 40px;
}

.logo h1, .logo h2 {
  font: normal 300% 'century gothic', arial, sans-serif;
  margin: 0 0 0 9px;	
}

.logo_text h1, .logo_text h1 a, .logo_text h1 a:hover {
	padding: 22px 0 0 0;
	color: #fff;
	letter-spacing: 0.1em;
	text-decoration: none;
} 

.logo_text h2 {
  font-size: 0.9em;
  padding: 4px 0 0 0;
  color: #999; 
}

.menubar {
  width: 900px;
  height: 46px;
}

ul.menu {
  float: right;
}

ul.menu li {
  float: left;
  padding: 0 0 0 9px;
  list-style: none;
  margin: 1px 2px 0 0;
}

ul.menu li a {
  font: normal 100% 'trebuchet ms', sans-serif;
  display: block;
  height: 20px; 
  padding: 6px 35px 5px 28px;
  color: #fff;
  text-decoration: none;
}

ul.menu li.selected a {
  color: #aeb002;
}

ul.menu li a:hover {
  color: #e4ec04;
}

hr {
  border: solid 1px #f3f3f3; 
}

.site_content {
  width: 880px;
  overflow: hidden;
  margin: 20px auto 0 auto;
  background-color: white;
}

.sidebar_container {
  float: right;
  width: 224px;
}

.sidebar {
  float: right;
  width: 222px;
  padding: 5%;
  margin: 0 0 16px 0;
  border: solid 1px #f2f2f2;
  border-radius: 5px;
  background-color: #f9f9f9; 
}

.btn {
  padding: 8px;
  background-color: white;
  cursor: pointer;
}

.sidebar h2 {
  color: #136cb2;
}

.lables_passreg_text {
  font-size: 0.7em;
  margin-top: 3%;
  margin-left: 2%; 
}

.sidebar ul {
  margin: 0;
}

.sidebar ul li {
  list-style-type: none;
  margin: 0 0 0 0;
}

.sidebar .rating_sidebar {
  float: right;
}

.content {
  text-align: left;
  width: 620px;
  padding: 0 0 0 5px;
  float: left; 
}

.content a {
  text-decoration: none; 
}

.films_block {
  margin-bottom: 5%; 
}

.films_block img {
  border-radius: 5px;
  border: solid 5px #dad7d5;
  width: 22%;
}

.posts .posts_content {
  font-size: 0.8em;
}

.info_film_page {
  margin-top: 2%;
  margin-bottom: 4%;
}

.info_film_page .label {
  font-size: 1.2em;
}

.info_film_page .value {
  font-size: 1em;
  color: #49945a;
  margin-right: 3%;
}

.descriptions_film {
  margin-bottom: 15%;
}

.descriptions_film img {
  float: left;
  margin-right: 2%;
  border-radius: 5px;
  border: solid 5px #dad7d5;
}

.reviews {
  margin-bottom: 4%;
  font-size: 0.9em;
}

.reviews .review_name {
  background-color: #7268ad;
  color: white;
  padding: 1%;
  border-top-left-radius: 5px;
  border-top-right-radius: 5px;
}

.reviews .review_text {
  padding-top: 2%;
  padding-bottom: 2%;
  padding-left: 2%;
} 

.send {
  margin-bottom: 4%;
}

.send input[type="text"], textarea {
  border: solid 1px #c3c3c3;
  margin-bottom: 2%;
}

.send input[type="text"] {
  width: 98%;
}

.send textarea {
  width: 624px;
  height: 200px;
}

.send input[type="submit"] {
  background-color: #7268ad;
  padding: 3%;
  color: white;
  border-radius: 5px;
}

.send_contact input[type="text"] {
  width: 500px;
}

.send_contact textarea {
  width: 516px;
}

.info_film {
  margin-bottom: 5%;
  background-color: #f9f9f9;
  padding: 5%;
  height: 270px;
}

.info_film img {
  float: left;
  margin-right: 2%;
  border-radius: 5px;
  border: solid 5px #dad7d5;
  width: 25%;
}

.button {
  background-color: #7268ad;
  padding: 2%;
  color: white;
  border-radius: 5px;
  float: right;
  margin-top: 5%;
  clear: both;
  font-size: 0.8em;
}

.button a {
  color: white;
}

table {
  width: 100%;
  border: solid 1px #f4f4f4;
}

td {
  padding: 2%;
  border: solid 1px #f4f4f4;
}

td img {
  width: 60px;
  vertical-align: middle;
}

.center {
  text-align: center;
}

.rating {
  font-weight: bold; 
  text-align: center;
}

.footer {
  width: 100%;
  height: 100px;
  padding: 28px 0 5px 0;
  text-align: center;
  background-color: darkslateblue;
  color: #a8aa94;
  margin-left: 0px;
  margin-right: 0px;
  min-width: 900px;  
}

.footer a {
  color: #a8aa94;
  text-decoration: none;
}

.footer a:hover {
  color: #fff;
  text-decoration: none;
}

.footer p {
  padding: 0 0 10px 0;
}

/* CSS Mobile */ 

@media only screen
and (min-device-width: 320px)
and (max-device-width: 568px) {

  .header {
    background-color: #257965;
    min-width: 100%;
    height: 20%;
    text-align: center;
  }

  .logo {
    width: 100%;
  } 

  .site_content {
    width: 100%;
  }

  .memubar {
    width: 100%;
    height: 100%;
  }

  .content {
    width: 100%;
    text-align: center;
  }

  .site_content {
    width: 100%;
    text-align: center;
  }

  .sidebar_container {
    display: none;
  }

  .footer {
    display: none;
  }

  ul.menu {
    float: none;
  }

  ul.menu li {
    margin: 0;
    padding: 0;
    float: none;
  }

  .logo h1 {
    font: normal 235% 'century gothic', arial, sans-serif;
  }

 .logo h2 {
    font: normal 100% 'century gothic', arial, sans-serif;
    color: white;
  }

  .content h1, h2 {
     font: normal 110% 'century gothic', arial;
  }

  .films_block img {
    width: 43%;
  }

  .posts_content p {
    line-height: 1.5em;
    padding: 3%;
    text-align: left;
  }

  .posts p {
    font-size: 120%;
  }

  /* films pade */
  .info_film {
    float: none;
    height: 100%;
  }

  .info_film img {
    width: 90%;
    margin-bottom: 5%;
  }

  .button {
    float: none;
  }

/* rating page */
  table {
    display: block;
  }

  th {
     font-size: 75%;
  }
  
  td {
    padding: 0;
    margin: 0;
    font-size: 95%;
    text-align: left; 
  }

/* show page */
  iframe {
    width: 88%;
    height: 100%;
  }

  .descriptions_film {
   width: 90%;
    text-align: left;
    margin-left: 2%;
  }

  .descriptions_film img {
   float: none;
   width: 73%;
   display: block;
   margin: 0;
   padding: 0;
   margin-left: 11%;
   margin-bottom: 7%;
  }

  .reviews {
   text-align: left;
   width: 96%
  }

  .send input[type="text"] {
   width: 80%
  }

  .send textarea {
    width: 85%
  }



}