body{
background-color: grey;

}

.bouton {
background-color: brown ; 
    color: #ffffff; 
    height: 40px; 
    width: 120px;
    position:relative;
    display: inline-block;
    text-align: center;
    font-size: 25px;
    padding: 5px;
    font-weight: bold;
    left: 15px;
    margin-right: 10px;;
}