[NSFW] Persistent content width in Chrome/IE/Edge

I am using WP automatic to pull contents from FB pages and had used CSS to control the width on single.php. It works fine on Opera browser but when viewed in Chrome/IE/Edge, the width seems to be very persistently stuck at 730px.

I had used this in my css to manage the width.

.scaled {
width: 600px;
height: auto;
}

I had done all sorts of width adjustment in tables and container and no go. Is there any way I can force the width in Chrome?

Thanks in advance!

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