javascript - Meta tag viewport makes the entire page disappear on mobile -

on wordpress site client using paid wp theme (fortis7). had make several fixes , changes default css , js code adding separate css , js files theme's flow. after noticing pages turned blank when meta tag viewport present (default), removed custom code, switching original, responsive design. nada. zippo. when meta tag on, pages blank. ideas/suggestions/hints?

ps: http errors see in console don't cause problem. i've tested this.

thanks in advance :-)

in style.css, find line , change width 100% :

@media (max-width: 600px){body { width: "??";}}