* {
    margin: 0;
    padding: 0;
    font-family: Arial, Helvetica, sans-serif;
}

body {
    width: 30%;
    margin: auto;
    background: powderblue;
}

header {
    background: darkcyan;
}

header h1 {
    color: white;
    margin-left: 8%;
    padding: 10px;
}

form {
    color: white;
    background: teal;
    border: 5px solid darkslategray;
    border-radius: 10px;
    padding-top: 20px;
    padding-left: 20px;
    margin-left: auto;
    margin-right: auto;
    margin-top: 10px;
    margin-bottom: 20px;
}

input {
    background: cadetblue;
    color: white;
    text-decoration: none;
    padding: 5px;
    border: 3px solid white;
    border-radius: 16px;
}

::placeholder {
    color: silver;
}

a {
    background: darkslategrey;
    color: white;
    text-decoration: none;
    padding: 5px;
    margin-bottom: 15px;
    border: 3px solid darkslategrey;
    border-radius: 16px;
}

a:hover {
    background: teal;
    border: 3px solid teal;
}

a:active {
    background: powderblue;
}

footer {
    color: white;
    background: black;
    margin-top: 20px;
}

footer p {
    text-align: center;
}

@media (max-width: 1200px)
{
    body {
        width: 80%;
        margin: auto;
    }
    
    footer {
        margin-top: 5%;
    }
}