body {
    padding: 0;
    margin: 0;
    background-color: rgb(0, 0, 0);
    font-family: sketchy;
    width: 100%;
    height: 100vh;
    font-size: 1.8em;
}

a {
    text-decoration: none;
    margin: 0;
    padding: 0;
    color: white;
}

img{
    width: 100%;
    height: 100vh;
    position: absolute;
    z-index: -1;
    opacity: 0;
    animation-duration: 2s;
    animation-name: fadein;
    animation-delay: 1s;
    animation-fill-mode :forwards;

}

.gauche {
    color: white;
    display: flex;
    justify-content: flex-end;
    align-items: center;
    flex-direction: column;
    height: 30vh;
}



#btna{
    opacity: 0;
    animation-duration: 1s;
    animation-name: fadein;
    animation-delay: 1.5s;
    animation-fill-mode :forwards;
    z-index: 5;
} 

@keyframes fadein{
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

#btnb{
    opacity: 0;
    color: red;
}

#q0{
    opacity: 0;
}

#q1{
    z-index: 11;
    width: fit-content;
    opacity: 0;
    display: flex;
    justify-content: center;
    color: black;
    padding: 10px;
    background-color: white;
    border: black 2px solid;
}

#q2{
    z-index: 12;
    width: fit-content;
    opacity: 0;
    display: flex;
    justify-content: center;
    color: black;
    padding: 10px;
    padding-left: 50px;
    padding-right: 50px;
    background-color: white;
    border: black 2px solid;
}

#r1{
    opacity: 0;
    position: absolute;
    color: black;
    width: fit-content;
    flex-wrap: nowrap;
    padding: 10px;
    background-color: white;
    border: black 2px solid;
}

#r2{
    opacity: 0;
    position: absolute;
    color: black;
    width: fit-content;
    flex-wrap: nowrap;
    padding: 10px;
    background-color: white;
    border: black 2px solid;
}

.a0{
    position: absolute;
    width: 100%;
    margin-top: 58vh;
}

.a1{
    width: 100%;
    display: flex;
    justify-content: center;
    margin-top: 10px;
}

.a21{
    display: flex;
    justify-content: center;
    color: white;
    z-index: 10;
}

.a2{
    position: absolute;
    width: 100%;
    display: flex;
    flex-direction: row;
    justify-content: space-evenly;
}

.a3{
    position: absolute;
    width: 100%;
    height: 87vh;
    display: flex;
    justify-content: center;
    align-items: flex-end;
}

.a4{
    position: absolute;
    width: 100%;
    height: 94vh;
    display: flex;
    justify-content: center;
    align-items: flex-end;
}