body {
font-family: helvetica,arial,sans-serif;
background-color: black;
color: white;
margin:10px;
}

body#main {
font-family: helvetica,arial,sans-serif;
background-color: white;
color: black;
}

p, .p {
  margin-top: 1em;
  text-indent: 30px;
  text-align: justify;
}

#p:before {
  content: '';
  width: 100%;
  height: 1em;
  display: inline-block;
}

a {
  color: yellow;
}