body {
    margin: 0;
    padding: 0;
    font-family: Arial, sans-serif;
    background-color: #1d1f2e;
}
.main {
    height: 100vh;
    position: relative;
}

.main img {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

@media screen and (max-width: 768px){
    .main {
        height: 90vh;
        width: 100%;
    }
    .main img {
        height: 100%;
        width: 100%;
        object-fit: contain;
    }
}