body {
    margin: 0;
    padding: 0;
    background-color: #111827;
    color: white;
    font-family: Arial, Helvetica, sans-serif;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.header {
    height: 50px;
    background-color: #1f2937;
    display: flex;
    justify-content: flex-end;
    align-items: center;
    padding: 0 20px;
}

.header a {
    text-decoration: none;
    margin-left: 20px;
    color: white;
}

footer {
    margin-top: auto;
    text-align: center;
    padding: 20px;
}

footer a {
    color: white;
    text-decoration: none;
}


article h1, aside h1, nav h1, section h1 {
    font-size: 2rem; 
}

ul {
    list-style: none;
    padding: 0; 
}


article h1, 
aside h1, 
nav h1, 
section h1 {
  font-size: 2rem; 
}