Просто переключите положение компонента <Icon />
после текста.IE
<Accordion>
<Accordion.Title active={activeIndex === 0} index={0} onClick={this.handleClick}>
<Icon name='dropdown' />
What is a dog?
</Accordion.Title>
<Accordion.Content active={activeIndex === 0}>
<p>
A dog is a type of domesticated animal. Known for its loyalty and
faithfulness, it can
be found as a welcome guest in many households across the world.
</p>
</Accordion.Content>
Слева, но справа отображается значок:
<Accordion>
<Accordion.Title active={activeIndex === 0} index={0} onClick={this.handleClick}>
What is a dog?
<Icon name='dropdown' />
</Accordion.Title>
<Accordion.Content active={activeIndex === 0}>
<p>
A dog is a type of domesticated animal. Known for its loyalty and
faithfulness, it can
be found as a welcome guest in many households across the world.
</p>
</Accordion.Content>
Кроме того, вы также можете передавать стили в реквизит, если хотитепробел Иконка, например:
<Icon name='dropdown' style={{"marginLeft": '2em' }} />