div, dl, dt, dd, ul, ol, li, h1, h2, h3, h4, h5, h6, pre, code, form, fieldset, legend, input, textarea, p, blockquote, th {
  margin: 0;
  padding: 0;
}
img {
  max-width: 100%;
  max-height: 100%;
}
a {
  color: blue;
  text-decoration: underline;
}
a:visited {
  color: #666;
}
a:hover, a:focus, a:active {
  text-decoration: underline;
  color: red;
}
body {
  margin: 0;
  padding: 0;
}