my website has a green body even if i set it to white (#fff)?

/****************************************************
 GENERAL
*****************************************************/

body{ 
  font-family: 'Open Sans', sans-serif;
}

#wrapper {
    max-width: 940px;
    margin: 0 auto;
    padding: 0 5%;
}

 a {                           
  text-decoration: none;
}

img {
  max-width: 100%;
}

h3 {
  margin: 0 0 1em 0;
}

/****************************************************
 HEADING
*****************************************************/

header {
  float: left;
  margin: 0 0 30px 0;
  padding: 5px 0 0 0;
  width: 100%;
}

#logo{
  text-align: center;
  margin: 0;
} 

h1{
  font-family:'Open Sans', sans-serif;
  margin: 15px 0;
  font-size: 2.75em;
  font-weight: normal;
  line-height: 0.8em;
}

h2{
  font-size: 1.5em;
  margin: -5px 0 0;
  font-weight: normal;
}

/****************************************************
NAVIGATION
*****************************************************/

nav{ 
  text-align: center;
  padding: 10px 0;
  margin: 20px 0 0;
}

nav ul {
  list-style: none;
  margin: 0 10px;
  padding:0;
}

nav li {
  display: inline-block;
}

nav a {
  font-weight: 800;
  padding: 15px 10px;
}


/****************************************************
FOOTER
*****************************************************/

footer{
  font-size: 0.75em;
  text-align: center;
  clear: both;
  padding-top: 50px;
  color: #ccc;
}

.social-icon {
  width: 20px;
  height: 20px;
  margin: 0 5px;
}



/****************************************************
PAGE: PORTFOLIO
*****************************************************/

#gallery{
  margin: 0;
  padding: 0;
  list-style: none;
}

#gallery li{
  float: left;
  width: 45%;
  margin: 2.5%;
  background-color: #f5f5f5;
  color: #bdc3c7;
}

#gallery li a p {
  margin: 0;
  padding: 5%;
  font-size: 0.75em;
  color: #bdc3c7;
}


/****************************************************
PAGE: CONTACTS
*****************************************************/  

.profile-photo {
  align-content:center;
  clear: both;
  display: block;     /* auto margins centers things */
  max-width: 150px;    
  margin: 0 auto 30px; 
  border-radius: 100%;  /* rounded corners */
  }



/****************************************************
PAGE: BOOKINGS
*****************************************************/  

.contact-info {
  list-style: none;
  padding: 0;
  margin: 0;
  font-size: 0.9em;
  /* vecchio non corretto font-style: 0.9em;*/
}

.contact-info a {
  /* display: block; --> li tiene bloccati l'uno sull'altro (img take more space to be displays)*/
  min-height: 20px;
  background-repeat: no-repeat;
  background-size: 20px 20px;
  padding: 0 0 0 30px;
  margin: 0 0 10px;

}


.contact-info li.phone a {
  background-image: url('../img/phone.png');
}

.contact-info li.mail a {
  background-image: url('../img/mail.png');
}

.contact-info li.twitter a {
  background-image: url('../img/twitter.png');
}

/****************************************************
COLORS 
*****************************************************/


body {
  background-color: #fff;
  color: #999;
}

header {
  background: #6ab47b;
  border-color: #599a68;
}

nav {
  background: #599a68;
}

h1, h2  {
  color: #fff;
}

a {
  color: #6ab47b;
}

nav a, nav a:visited {
  color: #fff;
}

nav a.selected, nav a:hover {
   color: #32673f;
}