*{
    padding: 0;
    margin: 0;
    position: relative;
    top: 0;
    left:0;
    font-family: Verdana;
    font-size: 18px;
    font-weight: normal;
}
#main-wrapper{
    height: 100vh;
    margin: 0px auto 0px auto;
    text-align: center;
}
#main-wrapper blockquote{margin: 10px auto;border: #ccc ridge 3px;width:45%;padding: 10px;border-radius: 5px;background-color: #e6e6e6;}
#main-wrapper p{text-align: left;margin: 15px 0;}
input[id='url-test']{width:99%;}

.video-wrapper{
    width: 100%;
    display: flex;
    -ms-flex-wrap: wrap;
    -webkit-flex-wrap: wrap;
    align-items: stretch;
    -ms-flex-wrap: nowrap;
    -webkit-flex-wrap: nowrap;
    flex-wrap: nowrap;
    margin: 10px 0;
}
.video-container{
    flex-basis: auto;
    padding-bottom: 15px;
    position: relative;
    width: 50%;
    height: calc(100vh-20vh);
}

.video-side-spaces{
    height:  calc(100vh-20vh);
    width: 25%;
}