I'm currently tweaking Syndex tumblr theme, here is what i got – http://mbielskyte.tumblr.com. If you will resize your browser window, you will see that everything is more or less fluid (i used vw's for most sizings). But if i open this blog on mobile phone, i see desktop version – http://cl.ly/image/1k3v1M072U0q.
Container is made with %:
margin:0 auto; width: 90%;
And for images i'm using max-width:, not just width.
Is there any simple solution for that?
Tumblr uses their own mobile version of a site or theme.
Take a look here.
You can overwrite this behaviour.
As mentioned in the comments, here is the solution of the problem:
<meta name="viewport" content="width=device-width, initial-scale=1 maximum-scale=1.0, user-scalable=no">