html {
  margin: 0;
  padding: 0;
}

body {
  font:
    14px 'Helvetica Neue',
    Arial,
    Helvetica,
    'Liberation Sans',
    'DejaVu Sans',
    'Noto Sans',
    sans-serif;
  margin: 0;
  padding: 0;
}

a:link,
a:visited,
a:hover,
a:active {
  color: #0044cc;
}

#welcome {
  width: auto;
  max-width: 440px;
  padding: 20px;
  margin: 0 auto;
  background-color: #dddddd;
  overflow: hidden;
  zoom: 1;
  box-sizing: border-box;
}
#welcome input[type='text'] {
  text-align: right;
  width: 34px;
  margin: 0 2px;
}
#welcome input[type='submit'] {
  float: right;
}

#game {
  min-height: 300px;
}
#game span.left,
#game span.correct {
  font-size: 18px;
  position: absolute;
  top: 20px;
}
#game span.left {
  left: 20px;
}
#game span.correct {
  right: 20px;
}
#game .banner {
  text-align: center;
  margin-top: 240px;
  padding: 10px 0;
  line-height: 54px;
  font-size: 36px;
  background-color: #dddddd;
}
#game .banner .end {
  display: none;
}
#game .banner p {
  font-size: 14px;
  line-height: 24px;
  margin: 0;
}
#game .banner p.correct {
  font-size: 36px;
  line-height: 56px;
}
#game .banner.wide {
  height: auto;
}
#game .banner input {
  font-size: 36px;
  font-family: inherit;
  width: 140px;
}
#game .banner .start {
  white-space: nowrap;
}
#game .banner sup {
  font-size: 0.65em;
  vertical-align: super;
  line-height: 0;
}

dd {
  margin-bottom: 0.5em;
}

table th {
  text-align: left;
}