Viewing github.com/facebook/react/packages/react-devtools-timeline/src/Timeline.css

```
.Content {
```
```
  width: 100%;
```
```
  position: relative;
```
```
  flex: 1 1 auto;
```
```
  display: flex;
```
```
  flex-direction: column;
```
```
  align-items: center;
```
```
  justify-content: center;
```
```
}
```
```
.ErrorMessage {
```
```
  margin: 0.5rem 0;
```
```
  color: var(--color-dim);
```

  font-family: var(--font-family-monospace);

  font-size: var(--font-size-monospace-normal);

```
}
```
```
.Row {
```
```
  display: flex;
```
```
  flex-direction: row;
```
```
  align-items: center;
```
```
  justify-content: center;
```
```
  flex-flow: wrap;
```
```
}
```
```
.EmptyStateContainer {
```
```
  text-align: center;
```
```
}
```
```
.Header {
```

  font-size: var(--font-size-sans-large);

```
  margin-bottom: 0.5rem;
```
```
}
```

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