diff --git src/wp-includes/kses.php src/wp-includes/kses.php
index 2b96e84a47..198b0fd7cb 100644
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function safecss_filter_attr( $css, $deprecated = '' ) { |
2063 | 2063 | * @since 5.0.0 Added support for `background-image`. |
2064 | 2064 | * @since 5.1.0 Added support for `text-transform`. |
2065 | 2065 | * @since 5.2.0 Added support for `background-position` and `grid-template-columns` |
| 2066 | * @since 5.3.0 Added support for `flex-basis`. |
2066 | 2067 | * |
2067 | 2068 | * @param string[] $attr Array of allowed CSS attributes. |
2068 | 2069 | */ |
… |
… |
function safecss_filter_attr( $css, $deprecated = '' ) { |
2141 | 2142 | 'vertical-align', |
2142 | 2143 | 'list-style-type', |
2143 | 2144 | 'grid-template-columns', |
| 2145 | 'flex-basis', |
2144 | 2146 | ) |
2145 | 2147 | ); |
2146 | 2148 | |