body {
    background-color: #000000;
    color: #ffffff;  
}

a {
    color:#FF0000;
  }

#mast {
  margin: auto;
  align-self: center;
  align-content: center;
  display: flex;
  justify-content: center;
  align-items: center;
}

#content {
 margin: auto;  
 align-self: center;
 align-content: center;
 display: flex;
 justify-content: center;
 align-items: center;
}

#content img {
    display: block;
}

#contact {
    margin: auto;
    align-self: center;
    align-content: center;
    display: flex;
    justify-content: center;
    align-items: center;
   }
#contact span {
    clear: both;
}