body {
    margin: 0px;
    display: flex;
    flex-direction: column;
    align-items: center;
    background-color: brown;
}

.image-container {
    text-align: center;
    margin: 20px;
}

.image-container img {
    border-radius: 10px;
    box-shadow: 0px 4px 8px rgba(0,0,0,0.3);
    background-color: lightgrey;
    width: 300px;
    height: 300px;
    margin: 10px;
}

.btn {
    border: none;
    padding: 10px 20px;
    color: white;
    background-color: slateblue;
    margin: 20px;
    border-radius: 5px;
    box-shadow: 0px 4px 8px rgba(0,0,0,0.3);
    cursor: pointer;
}