*{
    padding: 0;
    margin: 0;
    box-sizing: border-box;
}
.main-div{
    width: 100%;
}
.container{
    width: 100%;
    display: flex;
    justify-content: space-evenly;
    align-items: center;
    flex-wrap: wrap;
}
video{
    width: 40%;
}
@media screen and (max-width: 600px){
    .container{
        display: flex;
        flex-direction: column;
    }
    video{
        width: 70%;
    }
}