inserting CSS via a ‘custom CSS’ plugin is very unlikely to crash your site.
try to add:
.post-image-box img.wp-post-image { display: block; margin: auto; }
formatting, like image alignment, is the responsibiltiy and choice of the theme’s developer, not of WordPress in general.
I installed IMCustom CSS and inserted your code
suggestion under “Settings” as per Plugin instructions
but unfortunately don’t see any difference in what I had before;
all my post’s featured images are still all flush to left margin
you probably are correct about theme folks being responsible
for this. I paid about $250 to purchase a theme and have a
demo sample installed… unfortunately, the featured images in their
demo sample are all deliberately chosen to be much wider than high
so you would never realize there was a problem until NOW
I checked your site, and right now, I cannot find the suggested CSS anywhere…
is the CSS plugin still active with the code inserted?
sometimes, it needs to reload a web page to get to see any changes to the formatting, or it needs clearing the browser cache.
I followed the IMCustom CSS plugin instructions as follows:
Activate the plugin through the ‘Plugins’ screen in WordPress.
Use the Settings->IM Custom CSS screen to configure the plugin.
I inserted your code in place of *insert your code here* and
clicked on Save Changes
I had the same concern as you did when I tried inspecting the
HTML, so I retried the site using different browser and also
with my backup computer.. still have a problem
looks like the “easy to use” plug-in may not be doing what
it’s supposed to or it’s not able to insert that code
I noticed that there is apparently another way to insert code
via Dashboard->Appearance->Customize->Custom CSS
do you think it might work if I tried inserting your code via the above?