body {
    background-image: url(background.svg);
}
table {
    border-spacing: 2em;
}
#outilValidation {
    color: #0000EE;
    text-decoration: underline;
    cursor: pointer;
}
#outilValidation.visited {
    color: #551A8B;
}
#fleche {
    display: none;
}
#fleche.active {
    position: fixed;
    display: inherit;
}
code.bloc {
    color: white;
}
/*******
 * w3c *
 *******/
.w3c {
    background: url("http://www.w3.org/Icons/w3c_icon.svg");
    color: rgba(255,255,255,0);
}
/**********
 * Images *
 **********/
.conteneurImages {
    width: 100%;
    text-align: center;
}