body {
    font: 14px "Open Sans", "Arial", sans-serif;
}

video {
    margin-top: 2px;
    border: 1px solid black;
}

.button {
    cursor: pointer;
    display: block;
    width: 100%;
    border: 1px solid black;
    font-size: 16px;
    text-align: center;
    padding-top: 2px;
    padding-bottom: 4px;
    color: white;
    background-color: darkgreen;
    text-decoration: none;
}

h2 {
    margin-bottom: 4px;
}

.left {
    margin:10px;
    float: left;
    width: calc(50% - 20px);
    padding: 0px;
}

.right {
    margin:10px;
    float: left;
    width: calc(50% - 20px);
    padding: 0px;
}
video{
    width:100%;
}
.bottom {
    clear: both;
    padding-top: 10px;
}
.container{
    width:1000px;
    margin:Auto;
}