body{
    margin: 0;
    padding: 0;
}
.container{
    background: white;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 100%;
    height: 100vh;
}
.container img{
    width: 50vw;
}
.container1{
    background: black;
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
    height: 100vh;
}
.container2{
    background: white;
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
    height: 100vh;
}
.container1 img{
    width: 40vw;
}
.container2 img{
    width: 40vw;
}
.container3{
    width: 100%;
    height: 100vh;
    display: flex;
    justify-content: center;
}
video{
    height: 100vh;
}
.controls{
    width: 100%;
    display: flex;
    justify-content: center;
}
button {
    padding: 12px 25px;
    font-size: 17px;
    cursor: pointer;
    background-color: #007bff;
    color: white;
    border: none;
    border-radius: 6px;
    transition: background-color 0.3s ease, transform 0.2s ease;
}
button:hover {
    background-color: #0056b3;
    transform: translateY(-2px);
}
button:disabled {
    background-color: #cccccc;
    cursor: not-allowed;
    transform: none;
    opacity: 0.8;
}