{"json_modified": "2016-03-28T07:51:19.431122", "uuid": "13915fee-6b45-40aa-a27e-24bc083f147b", "title": "Fixing common validation problems", "url": "/en-US/docs/Fixing_common_validation_problems", "tags": ["Web Standards", "XHTML", "HTML", "Web Development"], "translations": [{"uuid": "15df421e-2b83-46c5-9f37-f777a4df7b11", "title": "\u00a1Libertad, Igualdad, Validez!", "url": "/es/docs/%C2%A1Libertad,_Igualdad,_Validez!", "tags": ["Desarrollo_Web", "HTML", "XHTML"], "summary": "Como una naci\u00f3n o una casa, una p\u00e1gina incorrectamente construida no puede mantenerse en pie, no al menos en los navegadores que cumplen los est\u00e1ndares. Cada p\u00e1gina tiene una estructura, y si no se es cuidadoso con los m\u00e9todos utilizados para construirla, la estructura estar\u00e1 da\u00f1ada, ser\u00e1 fragil y potencialmente peligrosa. Si carga una p\u00e1gina en Firefox, Opera o Konqueror y se visualiza mal, es probable que sin darse cuenta haya construido una estructura inestable.", "localization_tags": [], "locale": "es", "last_edit": "2015-12-10T13:49:44", "review_tags": []}, {"uuid": "f40fcafb-5a3a-4989-9ef8-ea4079c34dee", "title": "Libert\u00e9 ! Egalit\u00e9 ! Validit\u00e9 !", "url": "/fr/docs/Libert%C3%A9_!_Egalit%C3%A9_!_Validit%C3%A9_!", "tags": [], "summary": "", "localization_tags": [], "locale": "fr", "last_edit": "2007-01-21T16:46:38", "review_tags": []}, {"uuid": "75894909-8a63-4cff-a4ba-8149110a5a7e", "title": "Libert\u00e0! Uguaglianza! Validit\u00e0!", "url": "/it/docs/Libert%C3%A0!_Uguaglianza!_Validit%C3%A0!", "tags": ["Tutte_le_categorie", "Standard_Web", "HTML", "Sviluppo_Web", "XHTML"], "summary": "Come una nazione o una casa, una pagina che presenta dei \"dissidi interni\" non sta in piedi-- perlomeno non in browser attinenti agli standard. Ogni pagina ha una struttura, il che significa che usando i metodi di costruzione con disattenzione si otterr\u00e0 una struttura debole, imperfetta, e potenzialmente pericolosa. Se si ha mai provato a caricare una pagina in Opera o Netscape 6 o Internet Explorer e questa \u00e8 stata visualizzata in modo pessimo, significa che \u00e8 stata costruita inavvertitamente una struttura traballante.", "localization_tags": [], "locale": "it", "last_edit": "2010-05-18T18:26:41", "review_tags": []}], "modified": "2014-10-14T20:56:46", "label": "Fixing common validation problems", "localization_tags": [], "locale": "en-US", "id": 2240, "last_edit": "2014-10-14T20:56:42", "summary": "If you are not careful, you risk building your web pages on assumptions of browser behavior, that were never intentional, never documented and likely to not hold in the future. These assumptions are called quirks, and should be avoided in your web pages. Quirks may cause web pages to behave differently in different browsers, and even different versions of the same browser.", "sections": [{"id": "DOCTYPE_and_Validation", "title": "DOCTYPE and validation"}, {"id": "Common_Problems", "title": "Common problems"}, {"id": "Forgetting_Important_Attributes", "title": "Forgetting important attributes"}, {"id": "Improper_Nesting_of_Elements", "title": "Improper nesting of elements"}, {"id": "Improper_Comments", "title": "Improper comments"}, {"id": "Ampersands", "title": "Ampersands"}, {"id": "Attribute_Value_Presence_and_Quotation", "title": "Attribute Value Presence and Quotation"}, {"id": "I_use_.3Cfont.3E._How_to_define_or_to_replace_.3Cfont.3E_with_CSS.3F", "title": "The "}, {"id": "I_use_.3Ccenter.3E_or_align.3D.22center.22._How_to_align_with_CSS.3F", "title": "The "}, {"id": "How_to_replace_bgcolor.3F_How_to_colorize_background_with_CSS.3F", "title": "The\u00a0"}, {"id": "The_applet_element_is_deprecated", "title": "The "}, {"id": "What_if_I_use_.3Cmarquee.3E.3F", "title": "The "}, {"id": "What_if_I_have_.3Cbgsound.3E.3F", "title": "The "}, {"id": "Step_3:_Validate_your_CSS_code", "title": "Validating CSS"}, {"id": "Conclusion", "title": "Conclusion"}, {"id": "Also_On_MDC", "title": "Also on MDC"}, {"id": "Related_Links", "title": "Related links"}, {"id": "Original_Document_Information", "title": "Original Document Information"}], "slug": "Fixing_common_validation_problems", "review_tags": []}