The major browser manufacturers generally strive to adhere to the W3C specifications, and when they support a non-prefixed property, they typically remove the prefixed version. This practice is not recommended by the W3C, however in many cases, the only way you can test a property is to include the CSS extension that is compatible with your browser. As with any CSS property, if a browser doesn't support a proprietary extension, it will simply ignore it. Vendor Prefixesįor maximum browser compatibility many web developers add browser-specific properties by using extensions such as -webkit- for Safari, Google Chrome, and Opera (newer versions), -ms- for Internet Explorer, -moz- for Firefox, -o- for older versions of Opera etc. The following table provided by shows the level of browser support for this feature.
In addition, all CSS properties also accept the following CSS-wide keyword values as the sole component of their property value: initial Represents the value specified as the property's initial value. Up to four values per side are accepted (i.e. The values on the right side of the forward-slash determine the vertical radius. The values on the left side of the forward-slash determine the horizontal radius. To set a different radius for horizontal vs vertical, use a forward-slash to separate them ( / ).If top-right is omitted it will be the same as top-left. If the value for bottom-right is omitted it will be the same as the value for top-left. If the value for bottom-left is omitted it will be the same as the value for top-right.
The values must be provided in the following order: top-left, top-right, bottom-right, and bottom-left.If you provide only one value, it will determine the radius of all four corners - both the horizontal radius and the vertical radius.You can provide between one and eight values. Specifies the radius using a percentage value, for example, 10%. ]? Explanation of the Values Specifies the radius using a fixed length, for example, 10px.