body{
    margin: 0;
background-color:#00FFFF;
}
.topnav{
overflow: hidden;
  background-color: #000;
 
}
.topnav{
overflow: hidden;
background-color:#333333;
}
.topnav a {
  float: left;
  display: block;
  color: #ffffff;
  text-align: center;
  padding: 14px 16px;
  text-decoration: none;
  font-size: 12px;
}

.topnav a:hover {
  background-color: #ddd;
  color: white;
}

.topnav a.active {
    background-color: #ff3333;
    color: white;
}

signup a:hover {
  background-color: #ddd;
  color: black;
}
      .modal_container{
    width: 350px;
    height: 400px;
    position: absolute;
    background: rgba(2,70,88,0.8);
    
    opacity: 0;
    pointer-events: none;
    
    transition: all 500ms ease;
}
.modal_container:target{
    opacity: 1;
    pointer-events: auto;
}
.modal_container>div{
    transform: translate(0px, -50px);
    transition: all 500ms ease;
}
.modal_container:target>div{
    transform: translate(0px,0px);
}
.modal{
    width: 30px;
    height: 40px;
    margin: auto;
    position: absolute;
    top: 0px;
    bottom: 0px;
     right: 0px;
     left: 0px;
     background: black;
     border: 3px solid #4CAF50;
     padding: 30px;
     box-shadow:  0px 0px 50px 5px black;
}
/* The "responsive" class is added to the topnav with JavaScript when the user clicks on the icon. This class makes the topnav look good on small screens (display the links vertically instead of horizontally) */
@media screen and (max-width: 600px) {
  .topnav.responsive {position: relative;}
  .topnav.responsive a.icon {
    position: absolute;
    right: 0;
    top: 0;
  }
  .topnav.responsive a {
    float: none;
    display: block;
    text-align: left;
  }
  .topnav.responsive .dropdown {float: none;}
  .topnav.responsive .dropdown-content {position: relative;}
  .topnav.responsive .dropdown .dropbtn {
    display: block;
    width: 100%;
    text-align: left;
  }
}