:root{
    --main-grey: grey;
    --main-orange: orange;
  }

  *{
    margin: 0;
    padding: 0;
  
  }
  
  nav{
    display: flex;
    flex-direction: row;
    justify-content: flex-end;
    width: 100%;
    border: 1px solid black;
    height: 40px;
    align-items: center;
    background-color: var(--main-orange);
    position: fixed;
    top: 0;
  }

  a{
    text-decoration: none;
    color: black;
    margin: 10px;
    font-size: 2.5vh;
  }

body{
    background-color: grey;
    margin: auto;
    text-align:center;
    font-size: 30px;
}

.question{
    margin-top: 10vw;
}

.affReponses{
    display:flex;
    flex-direction:column;
    justify-content: center;
}

button{
    width:500px;
    border: 5px groove black;
    margin:auto;
    margin-top: 20px;
    font-size: 25px;

}

button:hover{
    transform: scaleY(0.9);
    background-color: black;
    color: white;
}

button:active{
    transform: translate(1px);
}

@media (width<800px){
    button{
        width: 300px;
        border: 3px groove black;
        margin:auto;
        margin-top: 10px;
        font-size: 15px;
    
    }
}