body {

main {
    width: 50%;
    margin: auto;
    padding: 20px;
    background-color:rgb(51, 83, 0);
    background-image: linear-gradient(darkslateblue, rgb(187, 187, 187), darkred);
    box-shadow: 2px 2px 5px black;
    border-width: 4px;
    border-style: solid;
    border-color: rgb(2, 0, 24);
    border-radius: 50px;
}
p {
    font-size: 20px;
}

p.subheading {
    text-align: center;
    font-weight: bold;
    text-shadow: 2px 2px 5px black;
    font-size: 25px;
}

h1 {
    font-size: 100px;
    text-align: center;
    background-color: ;
    text-shadow: 2px 2px 5px black;
}
    background-color: darkslateblue4;
    background-image: url(https://storage.googleapis.com/fiawec-prod/assets/ressources/Image/2017/03_Le_Mans/22676fff-9d75-48ae-92b1-5f0a5109ed5c.jpg);
    background-size: containr;
    color: white;
    font-family: 'Gill Sans', 'Gill Sans MT', Calibri, 'Trebuchet MS', sans-serif;

    font-size: 20px;
    
    nav {
        background-color: darkslateblue;
        padding: 10px;
        border-width: 2px;
        border-style: solid;
        border-color: rgb(2, 0, 24);
        border-radius: 25px;
}
    a {
        background-color: rgb(94, 80, 182);
        color: white;
        padding: 8px;
        margin: 5px;
        text-decoration: none;
        border-width: 2px;
        border-style: solid;
        border-color: rgb(2, 0, 24);
        border-radius: 12.5px;
        transition-duration: 300ms;
        display: inline-block
    }
    a:hover {
        background-color: rgb(135, 137, 235);
        translate: 0 -4px;
    }
}