style.css

body {
    font-family: Monaco, sans-serif;
    color: darkred;
    background-image: linear-gradient(to right, rgb(255, 200, 0), rgb(255, 0, 0));
}

img {
    max-width: 13em;
    opacity: 0.8;
    border-radius: 30%;
}

time {
    font-size: 4em;
}

input {
    background-color: #8d1111;
    border: none;
    color: rgb(245, 184, 184);
    padding: 15px 20px;
    text-align: center;
    text-decoration: none;
    font-size: 18px;
    border-radius: 13px;
    font-family: Monaco, sans-serif;
    outline: none;
    box-shadow: 0 8px 16px 0 rgba(0, 0, 0, 0.2), 0 6px 20px 0 rgba(0, 0, 0, 0.19);
}

button {
    background-color: #8d1111;
    border: none;
    color: rgb(245, 184, 184);
    padding: 15px 32px;
    text-align: center;
    text-decoration: none;
    display: inline-block;
    font-size: 18px;
    border-radius: 13px;
    cursor: pointer;
    transition-duration: 0.4s;
    font-family: Monaco, sans-serif;
    outline: none;
    box-shadow: 0 8px 16px 0 rgba(0, 0, 0, 0.2), 0 6px 20px 0 rgba(0, 0, 0, 0.19);
}

button:hover {
    background-color: #bb1c1c;
    box-shadow: 0 12px 16px 0 rgba(0, 0, 0, 0.24), 0 17px 50px 0 rgba(0, 0, 0, 0.19);
}

.center {
    text-align: center;
    margin-left: auto;
    margin-right: auto;
}

.stack>*+* {
    margin-top: 2rem;
}

.stack-small>*+* {
    margin-top: 1rem;
}