Opera browser has, perhaps, the most advanced in comparison with other popular types of browsers built-in tools for customizing the appearance of visited sites. There are several ways to set the display of fonts in the most convenient way for you.
Necessary
Opera browser
Instructions
Step 1
Change the font size along with the sizes of all other elements on the page - this is the simplest conversion available in the browser. It is carried out by pressing the "Plus" and "Minus" keys on the main or additional (numeric) keyboard. The same can be done using the mouse wheel while holding down the CTRL key.
Step 2
Press CTRL + F12 if you want to customize the use of fonts in more detail. This will open a window for changing browser settings. Instead of hotkeys, you can expand the menu, go to the "Settings" section and select the "General settings" item.
Step 3
Go to the "Advanced" tab and click "Fonts" in the list on the left. As a result, you will get access to detailed settings for the fonts used by the browser.
Step 4
Highlight the required line in the list and press the "Select" button. In the window that opens, you can select the typeface, its size, style, make it oblique, strikethrough, underlined and even overlined. When the sample in the preview window satisfies your requirements, click the "OK" button.
Step 5
Another way to change fonts is to take advantage of the browser's ability to use your own style descriptions. You can prepare a CSS file yourself or use one of the options installed with the browser. To select a style file and set the scheme for its use, click the "Content" item located in the list by the line above the "Fonts" item on the same "Advanced" tab.
Step 6
Click the "Customize Styles" button and the browser will open an additional window with two tabs.
Step 7
Click the Browse button on the View tab. Select the style file that contains instructions for setting font options and click Open.
Step 8
Click the Display Modes tab and check both boxes labeled My Style Sheet. If you wish, here you can specify in more detail for which page elements to use the settings from your style file, and which ones to leave with the styles specified by the page author.
Step 9
Click the "OK" buttons in both open settings windows.
