* {
    margin: 0
}

main {
    position: relative;
    min-height: 100vh;
    text-align: center;
}

#greetings {
    padding-bottom: 2.5rem;             /* Footer height */
    padding-top: 25px;
}

footer {
    position: absolute;
    bottom: 0;
    width: 100%;
    height: 2.5rem;                     /* Footer height */
}

h1,
h2 {
    margin: 10px;
}

img {
    height: 150px;
    width: auto;
    margin-top: 15px;
}