.buttons {
    background-color: black;
    display: flex;
    flex-direction: row;
}
.player {
    width: 800px; 
    height: 600px; 
    background-color: black;
    box-shadow: 0 0 10px rgba(0,0,0,0.9);
    display: flex;
    flex-direction: column;
}
.video-container {
    flex-grow: 1;
}
.button {
    border-style: none; 
    cursor: pointer; 
    color: white; 
    background-color: transparent;
    font-size: large;
    margin: 5px;
    height: 30px;
    width: 30px;
}
.empty {flex-grow: 1;}