Viewing github.com/facebook/react/fixtures/devtools/regression/styles.css

```
body {
```
```
  font-family: sans-serif;
```
```
  font-size: 12px;
```
```
}
```
```
h1 {
```
```
  margin: 0;
```
```
  font-size: 20px;
```
```
}
```
```
h2 {
```
```
  margin: 1rem 0 0;
```
```
}
```
```
iframe {
```
```
  border: 1px solid #ddd;
```
```
  border-radius: 0.5rem;
```
```
}
```
```
code {
```
```
  white-space: nowrap;
```
```
}
```
```
.Feature {
```
```
  margin: 1rem 0;
```
```
  border-bottom: 1px solid #eee;
```
```
  padding-bottom: 1rem;
```
```
}
```
```
.FeatureHeader {
```
```
  font-size: 16px;
```
```
  margin-bottom: 0.5rem;
```
```
}
```
```
.FeatureCode {
```
```
  background-color: #eee;
```
```
  padding: 0.25rem;
```
```
  border-radius: 0.25rem;
```
```
}
```