univ.phundrak.fr/css/square.css

body {
    overflow: hidden;
}

#container {
}

.carre {
    border: solid 50px #f67280;
    width: 0px;
    height: 0px;
    margin-top: 100px;
    margin-left: 0px;
    position: absolute;
}

#carre2 {
    display: none;
    float: left;
}