Hello,
We can suggest to use some css to "simulate" a shutdown button, as shown on my screenshot :
"
Click to better see screenshot details"
Note : In order to learn how to add custom css command, have a look on this
documentation
.
Now for your display issue, a little like already said on another topic, your frontend is is very largely customized, by custom css commands, overrides coming from your template, and more, and your display problems seem to come directly from these customization, now which one will be complicated.
Hope this will help you to achieved what you need.
Regards