html, body, div, span, applet, object, iframe,
h1, h2, h3, h4, h5, h6, p, blockquote, pre,
a, abbr, acronym, address, big, cite, code,
del, dfn, img, ins, kbd, q, s, samp,
small, strike, sub, sup, tt, var,
u, center,
dl, dt, dd, ol, ul, li,
fieldset, form, label, legend,
table, caption, tbody, tfoot, thead, tr, th, td,
article, aside, canvas, details, embed,
figure, figcaption, footer, header, hgroup,
menu, nav, output, ruby, section, summary,
time, mark, audio, video {
  margin: 0;
  padding: 0;
  border: 0;
  font-size: 100%;
  font: inherit;
  vertical-align: baseline;
}

BODY {
  margin: 0;
  padding: 2em;
  background: #FFF;
  font: 16px/1.4 Georgia, serif;
  }
  :target {
    overflow: hidden;
    padding: 1em;
    }

A {
  color: #52A2DF;
  }
HEADER,
H1, H2, H3 {
  transition: .5s;
  }

H1 {
  font-size: 4em;
  line-height: 1.2;
  margin-bottom: .1em;
  }

H2 {
  margin-bottom: .5em;
  font-size: 1.8em;
  color: #AAA;
  }

H3,
FIGCAPTION {
  font-size: 2em;
  }

P, FIGURE {
  margin-bottom: 1.5rem;
  }
  :target .partial-hide {
    display: none;
    }

PRE {
  margin-top: 1em;
  }

CODE {
  padding: 1px 5px;
  border: 1px solid #DDD;
  background-color: #F8F8F8;
  border-radius: 3px;
  font-family: Consolas, "Liberation Mono", Courier, monospace;
  font-size: 14px;
  color: #333;
  }
  .language-markup,
  .language-css {
    display: block;
    padding: 10px;
    line-height: 1.2;
    white-space: pre-wrap;
    }

HEADER {
  margin-bottom: 3rem;
  text-align: center;
  }

OBJECT {
  float: left;
  width: 332px;
  height: 500px;
  margin: 0 2em 2em 0;
  transition: 1s;
  border-radius: 10%/15%;
  }

.clear {
  clear: both;
  }

.wrapper {
  min-width: 300px;
  max-width: 1000px;
  margin: 0 auto;
  padding: 2em;
  -webkit-box-sizing: border-box;
     -moz-box-sizing: border-box;
               box-sizing: border-box;
  border: 1px solid #CCC;
  overflow: hidden;
  }
  .wrapper:after {
    content: "";
    display: table;
    width: 100%;
    }
  :target .wrapper {
    padding: .7em 2em;
    border: 0;
    }

@media screen and (max-width: 900px) {
  HEADER {
    margin-bottom: 2rem;
    }
  }

@media screen and (max-width: 820px) {
  H1 {
    margin: 0;
    font-size: 3.5em;
    }
  }

@media screen and (max-width: 730px) {
  HEADER {
    margin-bottom: 1.7rem;
    }
    H1 {
      font-size: 3em;
      }
  }

@media screen and (max-width: 680px) {
  HEADER {
    margin-bottom: 1.5rem;
    }
    H1 {
      font-size: 2.8em;
      }
  }

@media screen and (max-width: 640px) {
    H1 {
      font-size: 2.5em;
      }
  }

@media screen and (max-width: 570px) {
    H1 {
      font-size: 2.2em;
      }
  }
@media screen and (max-width: 540px) {
  HEADER {
    margin-bottom: 1.2rem;
    }
    H1 {
      font-size: 2em;
      }
  }

@media screen and (max-width: 500px) {
    H1 {
      font-size: 1.7em;
      }
  }

@media screen and (max-width: 600px) {
  H2 {
    font-size: 1.1em;
    }
  OBJECT {
    width: 150px;
    height: 100px;
    margin: 0 1.2em 1.2em 0;
    }
}

@media screen and (min-width: 601px) and (max-width: 800px) {
  H2 {
    font-size: 1.2em;
    }

  OBJECT {
    width: 300px;
    height: 199px;
    margin: 0 1.5em 1.5em 0;
    }
}

@media screen and (min-width: 801px) {
  OBJECT {
    width: 500px;
    height: 332px;
    }
}