.etherpad-iframe {
    clear: both; 
    margin-top: 10px;
    height: 600px;
    background-color: #FFF;
}
.etherpad-iframe .fullscreen-leave-button {
    display: none;
}

.etherpad-iframe.fullscreen {
    position: fixed;
    top: 0;
    left: 0;
    height: 100%;
    width: 100%;
    z-index: 10000000000; /* had to do that, thanks to the user-report button */
    margin: 0;
}
.etherpad-iframe.fullscreen .fullscreen-leave-button {
    display: inherit;
}

.fullscreen-button {
    margin-left: 25px;
}
.fullscreen-button i {
    font-size: 18px;
    vertical-align: middle;
    padding-left: 3px;
}
a.fullscreen-button:hover {
    text-decoration: none;
    color: #DDD;
}

.fullscreen-leave-button {
    z-index: 10000000001; /* had to do that, thanks to the user-report button */
    position: fixed;
    bottom: 0;
    left: 0;
    width: 200px !important;
}