body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

header {
    background-color: #FFFFFF;
    color: #4CAF50;
    text-align: center;
    padding: 1em 0;
}

footer {
    background-color: #4CAF50;
    color: #FFFFFF;
    text-align: center;
    padding: 1em 0;
}
.container {
    padding: 20px;
}

img {
    max-width: 100%;
    height: auto;
}

@media (min-width: 600px) {
    .container {
        max-width: 800px;
        margin: 0 auto;
    }
}

.button {
  background-color: #04AA6D; /* Green */
  border: none;
  color: white;
  padding: 15px 32px;
  text-align: center;
  text-decoration: none;
  display: inline-block;
  font-size: 16px;
}

input[type="text"] {
	text-transform: uppercase;
}