hi! thanks for this plugin!
I was wondering if it would be possible to support media queries, something like this:

.sfb-3453523{
background-color: #000;
@media (max-width: 780px){
text-align: center;
}
}

Just updated WP to latest version and the style panel that appears on the right has disappeared. The only thing that appears in the panel is the reset custom CSS red arrow and the CSS that was previously applied using the style panel. There are no style options available in panel when I select a block to edit??

In actual developer version of WP 5.3 there is no Style4Block icon to find.
=> Can not use Style4Block in WP 5.3

Is there any Update of Style4Block plugin to expect near release date of WP 5.3 on 12. Nov 2019?

A little wish for the future: Add a predefined option for clear float both
(I know I can add this in CSS, but for beginners a 1 click solution would be much better)

When you unpin the plugin button in Gutenberg, there is no way to bring the button back… Am I missing something?