.calendar-container iframe {
    position: absolute;
    top:0;
    left: 0;
    width: 100%;
    height: 100%;
}

.ytvideo-container {
position: relative;
padding-bottom: 56.25%;
padding-top: 40px; height: 0; overflow: hidden;
}

.ytvideo-container iframe,
.ytvideo-container object,
.ytvideo-container embed {
left: 50%;
position: absolute;
top: 40%;
transform: translate(-50%, -50%);
width: 70%;
height: 70%;
}