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

h1 {
    border-bottom: 1px solid gray; 
}

menu {
    background: #aaa; 
    width: 300px; 
    padding: 20px; 
}

menu a {
    color: black; 
    text-decoration: none; 
}


main p.rameczka {
    background: #daab14; 
    padding: 20px; 
    border-left: 10px solid #666; 
}

p:nth-child(2n) {
    background: #eee; 
} 

h1#t1 {
    color: red; 
}

main a {
    font-weight: bold; 
    text-decoration: none; 
}

main a:hover {
    background: yellow; 
    text-decoration: underline; 
}