Anki pictures won't centre when defining their size

[electricanki]

Anki pictures won’t centre when defining their size. I’ve tried a couple of ways to change this but none work.

div style=‘font-family: “Arial”; font-size: 20px;’
div style=‘width: 300px; height: 200px; text-align: center;’
{{图片}}
/div
/div

div style=‘font-family: “Arial”; font-size: 20px;’
div style=‘width: 300px; height: 200px; display: flex; justify-content: center; align-items: center;’
{{图片}}
/div
/div

[electricanki]

Found that it stays centered if you specify the size of the picture in the styles.