Opera Help and Support

Zoom and Other Display Modes

There are several options to increase readability of Web pages in opera.

Zoom

If a Web site has really small fonts, and you want to make them bigger, zoom in or out by pressing the + and -, or 0 and 9 buttons. Open Tools > Preferences > Web pages to set the default page zoom for new pages.

Full-screen mode

If your screen is small, or you want to display a website with the minimum of clutter, type F11 to maximize the browser window. Now the toolbars are hidden, and the document window occupies all the available space. Press F11 again to return to normal viewing mode.

Fit-to-width mode

If a Web page forces you to scroll left-right to read all of its content, you can eliminate the need for scrolling by pressing Ctrl-F11. Pressing Ctrl-F11 one more time returns you to normal mode.

Source- www.opera.com