speaker.css

body {
    font-family: Helvetica;
    font-size: 18px;
}

#wpadminbar {
    display: none;
}

#current-slide,
#upcoming-slide,
#speaker-controls {
    padding: 6px;
    box-sizing: border-box;
}

#current-slide iframe,
#upcoming-slide iframe {
    width: 200%;
    height: 200%;
    border: 1px solid #ddd;
    transform: scale(.5) translate(-50%, -50%);
    pointer-events: none;
}

#current-slide .label,
#upcoming-slide .label {
    position: absolute;
    bottom: 10px;
    right: 10px;
    z-index: 2;
}

.overlay-element {
    height: 34px;
    line-height: 34px;
    padding: 0 10px;
    text-shadow: none;
    background: #222;
    color: #fff;
    border: 2px solid #fff;
    font-size: 14px;
}

#current-slide {
    position: absolute;
    width: 60%;
    height: 100%;
    top: 0;
    left: 0;
    padding-right: 0;
}

#upcoming-slide {
    position: absolute;
    width: 40%;
    height: 40%;
    right: 0;
    top: 0;
}

/* Speaker controls */
#speaker-controls {
    right: 0;
    width: 40%;
    overflow: auto;
    font-size: 18px;
}

.speaker-controls-time .label,
.speaker-controls-pace .label,
.speaker-controls-notes .label {
    text-transform: uppercase;
    font-weight: normal;
    font-size: 0.66em;
    opacity: 0.3;
    margin: 0;
}

.speaker-controls-time {
    border-bottom: 1px solid rgba( 200, 200, 200, 0.5 );
    margin-bottom: 10px;
    padding: 10px 16px;
    padding-bottom: 20px;
    cursor: pointer;
}

.speaker-controls-time .reset-button {
    text-decoration: none;
}

.speaker-controls-time:hover .reset-button {
    opacity: 1;
}

.speaker-controls-time .timer,
.speaker-controls-time .clock,
.speaker-controls-time .slide-count {
    font-size: 1.9em;
}

.speaker-controls-time span.mute {
    opacity: 0.3;
}

.speaker-controls-notes {
    width: 40%;
    float: right;
    padding: 1.2%;
    margin-top: 0.6%;
}

.speaker-controls-notes .value {
    margin-top: 5px;
    line-height: 1.4;
    font-size: 28px;
}

.clear {
    clear: both;
}

body {
    background: #222;
    color: #fff;
    margin: 0;
}

#slide-container {
    width: 60%;
    float: left;
}

#current-slide-container,
#upcoming-slide-container,
.speaker-controls-time,
.speaker-controls-notes {
    box-sizing: border-box;
}

#current-slide-container {
    padding: 1%;
}

#upcoming-slide-container {
    width: 70%;
    padding-left: 1%;
    padding-bottom: 1%;
    float: left;
}

#current-slide,
#upcoming-slide {
    overflow: hidden;
    padding-top: 56.25%;
    position: relative;
    width: auto;
    height: auto;
    top: auto;
    left: auto;
}

#current-slide iframe,
#upcoming-slide iframe {
    border: 0;
    left: 0;
    position: absolute;
    top: 0;
    background: #fff;
}

.overlay-element {
    color: #fff;
}

.speaker-controls-time {
    width: 30%;
    padding: 2%;
    float: right;
    border-bottom: 0;
}

button {
    border-radius: 3px;
    line-height: 24px;
    border: none;
    padding: 0 5px;
    background: #fff;
    font-weight: bold;
    font-size: 12px;
}

.speaker-controls-time > div {
    margin-bottom: 10px;
}