.main-div {
    position: relative;
    display: flex;
    justify-content: center;
    padding: 10px 10px;
    margin-top: 10vh;
    margin-left: 20px;
    margin-right: 20px;
}

.second-div {
    display: flex;
    flex-direction: column;
}

form {
    margin-top: 30px;
}

input {
    font-size: 2em;
    text-align: center;
    padding: 10px 5px;
    width: 100%;
}

button {
    width: 100%;
    font-size: 1.6em;
    padding: 10px 5px;
}

@media only screen and (max-width: 768px) {
    img {
        width: 95vw;
    }
}