body {
    padding-top: 50px;
}
.starter-template {
    padding: 40px 15px;
    text-align: center;
}

.responsive-iframe-container {
    position: relative;
    padding-bottom: 56.25%;
    padding-top: 30px;
    height: 0;
    overflow: hidden;
}

.responsive-iframe-container iframe,
.vresponsive-iframe-container object,
.vresponsive-iframe-container embed {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

#canvas {
    width: 90%;
    height: 300pt;
}