body {
  font-family: arial;
}

#cards_table tbody tr:nth-child(odd) {
  background: #eee;
}

#cards_table tbody tr:nth-child(even) {
  background: #ccc;
}

#cards_table thead {
  font-weight: bold;
}

thead {
  font-size: 2em;
}

.col-han, .col-pinyin, .col-english {
  font-size: 3em;
}

#new input {
  width: 100px;
}

#new input[type='submit'] {
  width: 10em;
}

#new {
  margin-bottom: 2em;
}

#dup_warning {
  color: red;
}