html,
body {
    margin: 0;
    padding: 0;
    overflow: hidden;
}
output#counteee {
    font-size: 30px;
    margin-left:5px;
}
button.ctrl {
    width: 50px;
    height: 50px;
}
div.ctrl {
    width: 200px;
    height: 200px;
}
button#bl {
    margin-right: 50px;
}
button#bu, button#bd {
    margin-left: 50px
}