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at-rule-no-vendor-prefix

Disallow vendor prefixes for at-rules.

    @-webkit-keyframes { 0% { top: 0; } }/**  ↑ * This prefix */

This rule ignores non-standard vendor-prefixed at-rules that aren't handled by Autoprefixer.

The fix option can automatically fix all of the problems reported by this rule.

Options#

true#

The following patterns are considered problems:

@-webkit-keyframes { 0% { top: 0; } }
@-ms-viewport { orientation: landscape; }

The following patterns are not considered problems:

@keyframes { 0% { top: 0; } }
@viewport { orientation: landscape; }