body{
    background-color:rgb(233, 255, 248); 
    display:grid;
    grid-template-rows: .1fr .8fr .1fr; 
    grid-template-columns: repeat(3, 1fr); 
    /* one row inside each set of quotes */
    grid-template-areas: ". header ." "mappanel contentspanel survey" ". footer .";
}

header{
    grid-area: header; 
    text-align: center; 
}

footer{
    grid-area: footer; 
    text-align:center; 
}

#map{
    height:90vh;
    grid-area: mappanel;
} 

#contents
{
    grid-area: contentspanel; 
    display: grid;
    grid-template-columns: 1fr 1fr;
    grid-template-areas: "northernhemisphere southernhemisphere";
}

#northernhemisphere
{
    text-align: center; 
    grid-area: northernhemisphere; 
    display: grid; 
    grid-template-rows: repeat(auto, 1fr); 
}

#southernhemisphere
{
    text-align: center; 
    grid-area: southernhemisphere; 
    display: grid; 
    grid-template-rows: repeat(auto, 1fr); 
}


#survey {
    grid-area: survey;
    overflow: hidden;
    /* 16:9 aspect ratio */
    padding-top: 0%;
    position: relative;
}

#survey iframe {
   border: 0;
   height: 100%;
   left: 0;
   position: absolute;
   top: 0;
   width: 100%;
}