* {
  box-sizing: border-box;
  font-family: sans-serif;
}

html,
body {
  margin: 0;
  padding: 0;
  width: 100%;
  height: 100%;
}

body {
  background: #333;
  color: #eee;
  overflow: auto;
}
body a {
  color: #eee;
}

.center {
  margin: auto;
  padding: 2rem;
  width: 1200px;
  max-width: 100%;
  min-height: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
}
.center main {
  width: 100%;
}
.center main h1 {
  margin: 0;
  margin-bottom: 2rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid #666;
  font-weight: normal;
  font-size: 1rem;
  text-align: center;
  text-transform: uppercase;
  letter-spacing: 2px;
  line-height: 1;
}
.center main .render {
  margin-bottom: 1rem;
}
.center main .render canvas {
  max-width: 100%;
  margin: 0 auto;
  display: block;
}
.center main .render .info {
  margin-top: 1rem;
}
.center main .render .info p {
  text-align: center;
  margin: 0;
}
.center main .render .info p#name {
  font-size: 2rem;
}
.center main .render .info p#info {
  font-size: 1rem;
  color: #aaa;
}
.center main .controls .row {
  margin-bottom: 1rem;
}
.center main .controls span small {
  display: block;
  color: #aaa;
  font-size: 0.7em;
}
.center main .controls form {
  margin: 0;
  width: 100%;
}
.center main .controls form input[type='number'] {
  width: 100%;
  margin: 0;
  margin-top: 0.5rem;
  padding: 0;
  padding-bottom: 0.4rem;
  border: none;
  border-bottom: 1px solid #666;
  background: transparent;
  color: #eee;
  font-size: 1rem;
  cursor: n-resize;
}
.center main .controls form input[type='checkbox'] {
  display: none;
}
.center main .controls form input[type='checkbox'] + label {
  display: inline-block;
  color: #666;
  margin-top: 0.5rem;
  margin-right: 0.5rem;
  cursor: pointer;
}
.center main .controls form input[type='checkbox']:checked + label {
  color: #eee;
}
.center main .controls form#isometric input[type='checkbox'] + label::after {
  content: "Nope";
}
.center main .controls form#isometric input[type='checkbox']:checked + label::after {
  content: "Yup";
}

.row {
  width: 100%;
  margin: auto;
  display: flex;
  flex-wrap: wrap;
  align-items: top;
  justify-content: space-around;
}
.row > * {
  flex: 0 1 400px;
  display: inline-block;
}