/* CSS Document */
body        {
                background-color: lightblue;
                font-size: 12pt;
                text-align: center; 
                font-family: Calibri;
                margin: 50px;
                display: grid;
                grid-template-columns: repeat (3, lfr);
                grid-template-areas:    "head head aside"
                                        "foot foot foot";                                      
            }

header,aside,footer    {
                                  padding:10px;
                                  border:3px solid;
                                  margin:0px;
                                }
header  { 
            background-color:lightgreen;
            border-color:black;
            grid-area:head;
        }

aside   { 
            background-color:lightgreen;
            border-color:black;
            grid-area:aside;
        }
footer  { 
            background-color:lightgreen;
            border-color:black;
            grid-area:foot;
        }
        
h1      {
                color: black;
                text-align: center; 
        }
        
h2      {
                color: black;
                text-align: left;
        }