* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}
body {
    height: 46rem;
    width: 100%;
    background-color: #000000;
    display: flex;
    align-items: baseline;
    justify-content:center;
    padding-top: 4rem;

}
main {
    animation: fadeIn 2s;
}

main .img {
  height: 10rem;
}
main .heading {
    margin-top: 20px;
    color: white;
}
main .para {
    color: white;
    margin-top: 10px;
    line-height: 1.50rem;
}
main .btn {
    background-color: #181A1B;
    color: white;
    border: none;
    outline: none;
    padding-top: 10px;
    margin-top: 18px;
    padding-bottom: 10px;
    padding-left: 10px;
    padding-right: 10px;
    font-size: 16px;
    border-radius: 8px;
}
main .btn:hover {
    cursor: pointer;
    background-color: hsl(204, 5%, 19%);
}
section .video {
    position: absolute;
    left: 12%;
    top: 12%;
    height: 34rem;
    display: none; 
    animation:fadeIn 2s;
    
}
@keyframes fadeIn {
    0% {
        opacity: 0;
    }
    100% {
        opacity: 1;
    }
}
section .close {
    position: absolute;
    right: 5rem;
    display: none;
    top: 5rem;
}