Custom theme (schema_name: Denim, v14.5.8). Go to Styles & Settings → General Settings → Display to enter these settings.
Settings
Inject: End of
Selector type: CSS selector
Selector: [id^="variant-radios-"] legend:has(span[id*="size"])
Custom CSS
Add to Advanced → Custom CSS:
.ks-chart-container {
display: inline;
margin-left: 10px;
width: auto;
}
The :has() selector targets legends containing a span with 'size' in its ID, handling stores where the size option ID is dynamically generated.