canvas {
    border-bottom: 2px solid #0d0d0d;
}

.center {
    text-align: center;
}

.cote {
    margin-top: -40px;
}

button {
    margin-top: +50px;
    display: block;
    margin-left: auto;
    margin-right: auto;
}

img {
    position: relative;
    margin-top: -10px;
    margin-left: +300px;
}

.tab {
    margin-top: -10px;
}

.marge {
    margin-left: 5em;
}