header {background-color: #3399FF; height: 10vh;}
header h1 {text-align: center; color: bisque;}
h1 span {color: aquamarine;}
footer {background-color: #3399FF; height: 10vh;}
footer h2 {text-align: center; color: bisque;}
main {height: 80vh; width: 100vw; background: white url('../img/cartoon-ninja-silhouette.png')  fixed no-repeat center; 
    display: flex; flex-direction: row; justify-content: space-evenly; align-items: stretch;}
section {width: 80vw; /*background-color: beige;*/ margin: 0.5rem;}
aside {width: 10vw; background-color: beige; margin: 0.5rem;}