The CSS3 rule .body{text-align: left;} can overwrite the attribute of the body tag in HTML.
The subject of this question is Computers and Technology. The question is asking about overwriting the text-align property of the body tag in HTML, using CSS3 rules. It specifically asks if the CSS3 rule .body{text-align: left;} can overwrite the attribute of the body tag.
In HTML, inline styles are applied directly to the element using the style attribute, while CSS rules can be defined in a separate .css file or within the <style> tags in the HTML document. If both inline styles and CSS rules are present, the CSS rules take precedence over the inline styles.
In this case, the CSS3 rule .body{text-align: left;} will indeed overwrite the attribute of the body tag, as long as the CSS rule is applied after the inline style in the HTML document.