Webalt

2023年7月28日—Whatisalttext?Alsocalledalttagsandaltdescriptions,alttextisthewrittencopythatappearsinplaceofanimageonawebpageifthe ...,2023年10月30日—TheHTMLImageElementpropertyaltprovidesfallback(alternate)texttodisplaywhentheimagespecifiedbytheelementisnotloaded.,Alttagscanhelpusersthatarevisuallyimpairedandusingvoicereaderstodiscoverandunderstandtheimagesthatareembeddedwithinwebpagecontent.I...

Image Alt Text

2023年7月28日 — What is alt text? Also called alt tags and alt descriptions, alt text is the written copy that appears in place of an image on a webpage if the ...

HTMLImageElement: alt property - Web APIs

2023年10月30日 — The HTMLImageElement property alt provides fallback (alternate) text to display when the image specified by the element is not loaded.

What Is Alt Tag in SEO?

Alt tags can help users that are visually impaired and using voice readers to discover and understand the images that are embedded within web page content. It ...

Alt Text

2023年11月27日 — Alt text (alternative text) describes the appearance or function of an image on a web page. Alt text is read aloud by programs called screen ...

What Is an Alt Tag and How Should You Use It?

They Improve Web Accessibility. Alt tags help ensure that visitors can access and enjoy your website's content, even when using assistive technology or text- ...

HTML alt Attribute

The alt attribute provides alternative information for an image if a user for some reason cannot view it (because of slow connection, an error in the src ...

HTML img alt Attribute

The required alt attribute specifies an alternate text for an image, if the image cannot be displayed. The alt attribute provides alternative information for an ...

網站設計的圖片(alt)

在HTML代碼中使用ALT（替代文字），可以稱為ALT屬性、ALT描述，主要用來作為圖片的文字敘述，當圖片無法正常載入時，就顯示該圖片的ALT敘述，來替代未載入的圖片。

alt屬性

alt屬性是一個用於網頁語言HTML和XHTML、為輸出純文字的參數屬性。它的作用是當HTML元素本身的物件無法被彩現時，就顯示alt（替代）文字作為一種補救措施。