You have used the attribute named above in your document, but the document type you are using does not support that attribute for this element. This error is often caused by incorrect use of the "Strict" document type with a document that uses frames (e.g. you must use the "Transitional" document type to get the "target" attribute), or by using vendor proprietary extensions such as "marginheight" (this is usually fixed by using CSS to achieve the desired effect instead).
This error may also result if the element itself is not supported in the document type you are using, as an undefined element will have no supported attributes; in this case, see the element-undefined error message for further information.
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Здравствуйте, подскажите какой тег использовать для увеличения значения, пример на картинке.
Вроде, про такой тег я слышала. Если есть тег прогресс бар, значит и такое должно быть.
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Daiver
Имеется xhtml страница с формой отправки сообщений. При проверке на валидацию w3 выдает ошибку в строке
страница с ошибкой находится по адресу http://dorogadushi.narod.ru/uslugi/otzivi_i_predlozheniya/
Ругается валидатор именно на placeholder. Говорит, что там нельзя чтобы был такой.
привожу отчет валидатора w3:
Помогите понять в чем проблема.
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