Solved button looks broken [mobile]

[nexo]

As displayed on Meta:

For the user who can add or remove “solved”, the button appears like this for them.

[simon]

I can reproduce that on meta when I load the site with the mobile view.

[awesomerobot (Kris)]

I think we might need to update the plugin on Meta? I see styles in place to prevent this on my dev install.

[sam (Sam Saffron)]

Is this still happening? We have deployed meta quite a few times with latest solved since.