body {background: black;
                color: White;
            }
            a {color: Gray;}

            .header {border: 2px solid yellow;
                     height: 75px;
                     width: 100vw;
                     position: absolute;
                     top: 0px;
                     left: 0px;
            }
            .header h1 {text-align: center;}
            .footer{border: 2px solid yellow;
                    position: absolute;
                    bottom: 0px;
                    left: 0px;
                    width: 100vw;
                    height: 75px;
            }
            .middle {position: absolute;
                     left: 0px;
                     top: 75px;
                     bottom: 75px;
                     display: flex;
                     flex-flow: row;
                     width: 100vw;
                     border: 2px solid yellow;
            }
            .sidebar{border: 2px solid yellow;
                     width: 200px;
            }

            .sidebar a:hover {font-style:italic;}
            .sidebar a:visited {color:green;}
            .sidebar a:active {font-size:larger;}
            .mainbody {border: 2px solid yellow;
                    flex-grow: 1;
            }