-moz-border-radius-topleft

The -moz-border-radius-topleft Mozilla extension property is used in CSS and certain HTML elements to create a rounded border on the top left corner of a particular object. The  prefix specifies that its effect can only be seen in browsers which use Gecko as their web engine, like Mozilla Firefox, as   stands for Mozilla. It will only create a border if there is a specific /  on the object. For functionality on other browsers, use the  property. To specify a border radius to the other individual corners, use the,  , and   properties. To specify a border radius which applies to all corners, use.

Values

 * - Specifies a unit of measurement for the radius size. Examples of units are:,  ,  , etc.

HTML example:

Check out the border.

That produces: Check out the border. Viewers who are not using Firefox will not be able to see its effect.

CSS  example:

h1 { background-color: white; color: black; -moz-border-radius-topleft: 10px; }

Image example: