* {
    font-family: Verdana, Geneva, Tahoma, sans-serif;
    margin: 0;
    padding: 0;
}

html, body {
    height: 100%;
    margin: 0;
    padding: 0; /* Removed padding-top */
    display: flex; /* Added flexbox */
    flex-direction: column; /* Stack items vertically */
}

body {
    background-color: rgba(35, 47, 62, 1);
    color: black;
    height: 100%;
}

#navbar-placeholder {
    font-size: 20px;
    margin: 0; /* Removed 10px from bottom, since we will use flexbox */
    text-align: center;
    color: white;
}

#main {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-grow: 1; /* Allow main to expand */
}

header {
    color: black;
    font-size: 30px;
    margin: 0;
    text-align: center;
}

h1 {
    color: black;
    font-size: 30px;
    margin: 10px;
    text-align: center;
}

h2 {
    color: black;
    font-size: 25px;
    margin: 10px;
    text-align: center;
}

p {
    color: black;
    font-size: 20px;
    margin: 10px;
    text-align: center;
}

#footer_placeholder {
    font-size: 20px;
    margin: 0;
    text-align: center;
    color: white;
    padding: 10px;
}