Images floating right

[dmi3kno]

I dont seem to be able to insert floating images. I tried

<img class="float-right" src="https://hackmd.io/_uploads/rkpSWIqeA.png" width="240">

And I tried

<img style="float:right;" src="https://hackmd.io/_uploads/rkpSWIqeA.png" width="240">

But nothing seems to help. I am still getting the image above the text.

What am I doing wrong?