body{
    margin: 0;
    background: linear-gradient(0.25turn, #5c1ead, #0059ff, #00c3ca);
    color: rgb(255, 255, 255);
}

.back{
    background-color: white;
    width: max-content;
    margin: 50px;
    border-radius: 20px;
    border: 4px inset white;
    display:grid;
    position:fixed;
}
.back:hover{
    border: 4px inset black;
}

button{
    display: inline-block;
    border-radius: 10px;
    border: 4px outset #ffffff;
    text-align: center;
    font-size: 28px;
    padding: 20px;
    width: 200px;
    -webkit-transition: all 0.5s;
    -moz-transition: all 0.5s;
    -o-transition: all 0.5s;
    transition: all 0.5s;
    cursor: pointer;
    font-family:'Courier New', Courier, monospace;
}
button.bleu{
    background-color: rgb(255, 255, 255);
    color: #000000;
}
button.bleu:hover{
    background: linear-gradient(blue,rgb(0, 0, 110));
    color: white;
    border: 4px outset black;
}
button.blanc{
    background-color: rgb(255, 255, 255);
    color: rgb(0, 0, 0);
}
button.blanc:hover{
    background: linear-gradient(white,grey);
    color: rgb(255, 255, 255);
    border: 4px outset black;
}
button.rouge{
    background-color: rgb(255, 255, 255);
    color: #000000;
}
button.rouge:hover{
    background: linear-gradient(red,rgb(110, 0, 0));
    color: white;
    border: 4px outset black;
}

h1.titre{
    font-family:Verdana, Geneva, Tahoma, sans-serif;
}

.nom{
    font-weight: bold;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}
dd{
    margin: auto;
    font-family:'Gill Sans', 'Gill Sans MT', Calibri, 'Trebuchet MS', sans-serif;
}