html, body {
    height: 100%;
    margin: 0;
}

main {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    text-align: center;
}

section {
    width: 95%;
    margin: auto;
}
table {
    width: 50%;
    margin: auto;
}
footer {
    background-color: #f1f1f1;
    padding: 10px 0;
    text-align: center;
}

body {
    font-family: Arial, sans-serif;
}

header {
    background-color: #333;
    color: white;
    padding: 10px 0;
    text-align: center;
    position: relative;
}

nav ul {
    list-style: none;
    padding: 0;
    margin: 0;
    overflow: hidden;
    display: flex;
    align-items: center;
    flex-direction: row-reverse;
}

nav ul li {
    float: left;
    margin: 0 10px;
}

nav ul li a {
    color: white;
    text-decoration: none;
}

.nav-right {
    float: right;
    margin-right: 10px;
}

.login-form {
    display: flex;
    align-items: center;
}

.login-form input[type="text"],
.login-form input[type="password"] {
    margin: 0 5px;
    padding: 5px;
}

.login-form input[type="submit"] {
    padding: 5px 10px;
    margin-left: 5px;
}

main {
    padding: 20px;
}

footer {
    text-align: center;
    padding: 10px 0;
    background-color: #333;
    color: white;
    bottom: 0;
    width: 100%;
}