drop-initial-after-adjustプロパティ

Value：central | middle | after-edge | text-after-edge | ideographic | alphabetic | mathematical | <percentage> | <length>
Initial：text-after-edge
Applies to：::first-letter pseudo element
Inherited：no
Percentages：refer to combined line height size as provided by drop-initial-value
Media：visual
Computed value：specified values (except for initial and inherit)