#controls-bar {
    display: flex;
    justify-content: space-between;
    flex-direction: row;
    height: 40px;
    background-color: rgb(230, 230, 230);
}

.btn, .btn-disabled, .btn-cancel, .btn-active {
    display: inline-block;
    border: none;
    margin: 5px 0;
    border-radius: 5px;
    outline: none;
    height: 30px;
    width: 30px;

    background-size: 100%;
}

#btn-forward {
    background-image: url('img/goForward.png');
}

.btn-disabled#btn-forward {
    background-image: url('img/goForward_disabled.png');
}

#btn-back {
    background-image: url('img/goBack.png');
}

.btn-disabled#btn-back {
    background-image: url('img/goBack_disabled.png');
}

#btn-reload {
    background-image: url('img/reload.png');
}

.btn-cancel#btn-reload {
    background-image: url('img/cancel.png');
}

#btn-options {
    background-image: url('img/options.png');
}

.controls-group {
    display: inline-block;
    height: 40px;
}

#nav-controls-container {
    align-self: flex-start;
    padding-left: 10px;
}

#manage-controls-container {
    align-self: flex-end;
    padding-right: 10px;
}

.btn:hover, .btn-cancel:hover, .btn-active {
    background-color: rgb(200, 200, 200);
}