Title: xhtml validation error Last modified: August 21, 2016 --- # xhtml validation error * Resolved [orbitbob](https://wordpress.org/support/users/orbitbob/) * (@orbitbob) * [12 years, 6 months ago](https://wordpress.org/support/topic/xhtml-validation-error-1/) * I am having the same validation error as this post: [http://wordpress.org/support/topic/meta-slider-v-231-xhtml-validation-error?replies=5%22%3Ehttp%3A%2F%2Fwordpress.org%2Fsupport%2Ftopic%2Fmeta-slider-v-231-xhtml-validation-error](http://wordpress.org/support/topic/meta-slider-v-231-xhtml-validation-error?replies=5%22%3Ehttp%3A%2F%2Fwordpress.org%2Fsupport%2Ftopic%2Fmeta-slider-v-231-xhtml-validation-error) * When I add the code you suggested in the functions.php file it breaks the entire slide show. * [http://wordpress.org/plugins/ml-slider/](http://wordpress.org/plugins/ml-slider/) Viewing 8 replies - 1 through 8 (of 8 total) * Thread Starter [orbitbob](https://wordpress.org/support/users/orbitbob/) * (@orbitbob) * [12 years, 6 months ago](https://wordpress.org/support/topic/xhtml-validation-error-1/#post-4231063) * my site is html5 * Thread Starter [orbitbob](https://wordpress.org/support/users/orbitbob/) * (@orbitbob) * [12 years, 6 months ago](https://wordpress.org/support/topic/xhtml-validation-error-1/#post-4231065) * actually my validation error message is slightly different: * Line 150, Column 27: Element style is missing required attribute scoped. *