.feedback {
    position: fixed;
    top: -12px;
    right: 50px;
    z-index: 2000;
}

.pencil {
    cursor: pointer;
    width: 36px;
    height: 112px;
    background: url("/resources/images/pencil_down.png");
    transition: display 1s;
    -webkit-transition: display 1s;
}

#topcontrol a.top_stick {
    width: 30px;
    height: 100px;
    background: url("/resources/images/backtotop.png");
}

.animated {
    -webkit-transition: .9s ease-out;
    -moz-transition: .9s ease-out;
    -ms-transition: .9s ease-out;
    -o-transition: .9s ease-out;
    transition: .9s ease-out;
}

.flipped-horizontal-right {
    -webkit-transform: rotateY(180deg);
    -moz-transform: rotateY(180deg);
    -ms-transform: rotateY(180deg);
    -o-transform: rotateY(180deg);
    transform: rotateY(180deg);
}

.flipped-horizontal-right-360 {
    -webkit-transform: rotateY(360deg);
    -moz-transform: rotateY(360deg);
    -ms-transform: rotateY(360deg);
    -o-transform: rotateY(360deg);
    transform: rotateY(360deg);
}

.blackboard {
    position: fixed;
    top: -30px;
    right: 18px;
    width: 100px;
    height: 150px;
    background: url("/resources/images/blackboard.png");
    display: none;
    cursor: pointer;
}