body {
  background-color: red;
}

h1{
  color: white;
  font-size: 24px;
  font-family: Arial, Helvetica, sans-serif;
}

img {
  width: 100%;
}

p, li {
  color: white;
  font-family: Arial, Helvetica, sans-serif;
}

.header {
  background-color: black;
  padding-left: 10px;
  border: 1px solid black; 
  
}

.footer {
  background-color: green;
  background: black;
  color: white;
  border: 1px solid black;
  padding-left: 10px;
}

img {
  max-width: 300px;
  height: auto;
  display: block;
  margin: 1rem auto;
}