line-height:2.4em

line-height:2.4em表示行高为当前字体大小的2.4倍。 em是一个相对单位，它是根据当前元素的字体大小来计算行高。如果当前元素的字体大小为10像素，那么line-height:2.4em就表示行高为24像素。这个值会根据字体大小的变化而自动调整。所以，line-height:2.4em可以根据字体大小的变化来保持一致的行高。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
#### 引用[.reference_title]
- *1* [CSS的单位及css3的calc()及line-height百分比](https://blog.csdn.net/ime33/article/details/78530763)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v93^chatsearchT3_2"}}] [.reference_item style="max-width: 33.333333333333336%"]
- *2* [undefined](undefined)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v93^chatsearchT3_2"}}] [.reference_item style="max-width: 33.333333333333336%"]
- *3* [CSS的单位及line-height百分比](https://blog.csdn.net/LonelyChristmasya/article/details/77091790)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v93^chatsearchT3_2"}}] [.reference_item style="max-width: 33.333333333333336%"]
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