How can I enclose the content section of my blog to display any items(JPEGs/video) to a certain width??? I'd like to re-size only if the items are larger then "...px"

I currently use 'blogger', I can 开发者_如何学运维either manipulate the html for my entire blog or make up tags to use when needed inside individual posts...I've been attempting things with the div tag unsuccessfully for hours so I though it best to ask after so many failed attempts.

Thanks regardless

---

I'm new on this but I think you can do it using CSS

In your template (HTML View) search for </style> inside <header> and put some like this above.

In CSS

.content {
    [your content css]
}

.max900 {
    max-width:900px
}

You can customize the "...px" above.

In HTML

Then in your blog content, in HTML View, define classes "content" and "max900":

Lorem ipsum dolor sit amet, consectetur adipiscing elit.

  <div class="content max900">
      Maecenas ut tellus lorem, in mattis ante.
      <img class="max900" src="image.jpg" />
  </div>

Nulla aliquam, sed venenatis erat lorem sit amet dolor.

PS. Sorry for my English.