*{
    margin: 10px;
    box-sizing: border-box;
     background-color: rgb(255, 255, 255)
}

body {
    height: 95vh;
    font-family: Arial, Helvetica, sans-serif;
    text-align: center;
    font-size: 20px;
    display: flex;
    flex-direction: column;
}


header {
    /*background-color: darkolivegreen;*/
    padding: 1em 0 1em 0; 
    font-family: "Arial", cursive;
    font-size: 20px;
    background-color: rgb(255, 253, 253);
}