class: center, middle 但这会改变整个幻灯片的标题和布局。您也可以通过以下方式使图像居中:
class: center, middle
.center[  ]
谢谢!
试试这个: 定义 .center2
.center2
<style> .center2 { margin: 0; position: absolute; top: 50%; left: 50%; -ms-transform: translate(-50%, -50%); transform: translate(-50%, -50%); } </style>
然后插入图像,用 .center2[] :
.center2[]
.center2[ ```{r echo = FALSE} knitr::include_graphics("path/to/image") ``` ]