html{
    height:100%;
    margin:0px;
}
body{
    height:100%;
    margin:0px;
}
main{
    height:90%;
    margin:0px;
    display: flex;
    justify-content: center;
    align-items: center;
    background: #a8b5bf;
}
.tab{
    background-color: #DDD;
    width:100%;
    height:100%;
}
.titre_site {
    font-size:70px;
    font-family:Courier New;
    font-weight: bold;
    text-align: left;
}
.description_titre{
    font-size:30px;
    font-family:Courier New;
    text-align: left;
}
.case{
    font-size: 30px;
    width: 90%;
    margin-left: 5%;
    margin-right: 5%;
    margin-top: 5%;
    padding: 10px;
    border-radius: 10px;
    font-family:Courier New;
    box-sizing: border-box;
}
.div_form{
    background-color: #FFFFFF;
    width: 60%;
    border-radius: 25px;
    box-shadow: 5px 5px 18px #AAAAAA;
    margin-left: 10%;
    margin-right: 30%;
}
.submit{
    text-align: center;
    display: block;
    margin: 0 auto 5%;
    font-size: 30px;
    padding: 8px;
    font-weight: bold;
    background-color: #75B726;
    border: none;
    border-radius: 10px;
    font-family:Courier New;
}
a{
    text-decoration: none;
    color: #FFFFFF;
    font-weight: bold;
    font-size: 20px;
}
.div_titre{
    text-align: left;
    margin-left: auto;
    margin-right: auto;
}
footer{
    height: 10%;
    background-color: #FFF;
    margin:0px;
}

.table{
    display: grid;
    grid-template-columns: 1fr 1fr;
    width: 100%;
    align-items: center;
}

@media (min-width: 800px) {
    .div_titre{
        margin-left: 40%;
        margin-bottom: 10%;
        margin-top: 10%;
    }
  }

  @media (max-width:800px){
    .table {
      grid-template-columns: 1fr;
      width:100%;
    }
    .div_titre{
        text-align: center;
        margin-top: 10%;
    }
    .description_titre{
        text-align: center;
    }
    .div_form{
        margin-left: auto;
        margin-right: auto;
        width:80%;
        margin-top:20%;
    }
    main{
        align-items: start;
    }
    .titre_site{
        font-size: 60px;
    }
  }

  @media (max-width:1200px) and (min-width:800px){
    .div_titre{
        margin-left: 20%;
        margin-bottom: 10%;
        margin-top: 10%;
    }
  }