:root {
  --font1:'Raleway', sans-serif;
  --font2:'Montserrat', sans-serif;
}
body{
  /*background-color: #e6e6e6;*/
  background-image: url("tile.png");

}
.container>img{
  
  margin: 10px;

}
.container{
  text-align: center;
}
 
 .dummy{
position: absolute;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
display: none;
}
.nasalogo>img{
  max-width: 80px;
  margin: 10px;
}
/* The Modal (background) */
.modal {
  display: none; /* Hidden by default */
  position: fixed; /* Stay in place */
  z-index: 1; /* Sit on top */
  padding-top: 100px; /* Location of the box */
  left: 0;
  top: 0;
  width: 100%; /* Full width */
  height: 100%; /* Full height */
  overflow: auto; /* Enable scroll if needed */
  background-color: rgb(0,0,0); /* Fallback color */
  background-color: rgba(0,0,0,0.4); /* Black w/ opacity */
}

/* Modal Content */
.modal-content {
  background-color: #4E5860;
  margin: auto;
  padding: 20px;
  border: 1px solid #888;
  text-align: center;
  width: 80%;
  color: #FFF;
}

/* The Close Button */
.close {
  color: #FFF;
  float: right;
  font-size: 28px;
  font-weight: bold;
}

.close:hover,
.close:focus {
  color: #FFF;
  text-decoration: none;
  cursor: pointer;
}

#infobutton{
float: right;
margin: 10px;
color: #FFF;
cursor: pointer;
}
.scrollup {
    width: 40px;
    height: 40px;
    position: fixed;
    bottom: 40px;
    right: 28px;
    display: none;

 }
/* Smartphones (portrait and landscape) ---------- */
@media screen and (min-width: 320px) and (max-width: 480px){
  .container>img{
  
  max-width: 300px;

  }
  
}
/* Smartphones (portrait) ---------- */
@media screen and (max-width: 320px){
    .container>img{
  
  max-width: 300px;

  }
}
/* Smartphones (landscape) ---------- */
@media screen and (min-width: 321px){
   .container>img{
  
  max-width: 300px;

  }
}
/* Tablets, iPads (portrait and landscape) ---------- */
@media screen and (min-width: 768px) and (max-width: 1024px){
    .container>img{
  
  max-width: 300px;

  }
}
/* Tablets, iPads (portrait) ---------- */
@media screen and (min-width: 768px){
    .container>img{
  
  max-width: 300px;

  }
}
/* Tablets, iPads (landscape) ---------- */
@media screen and (min-width: 1024px){
  .container>img{
  
  max-width: 300px;

  }
}
/* Desktops and laptops ---------- */
@media screen and (min-width: 1224px){
    .container>img{
  
  max-width: 500px;

  }
}
/* Large screens ---------- */
@media screen and (min-width: 1824px){
   .container>img{
  
  max-width: 500px;

  }
}