html {
  box-sizing: border-box;
}
*, *:before, *:after {
  box-sizing: inherit;
}
:focus {
  outline:none;
}
::-moz-focus-inner {
  border:0;
}

.code {
  width: 100%;
  height: 600px;
}
.submit {
  margin: 20px 0 0 20px;
}