Enable this option if the image is purely decorative and does not add any information to the content on the page. It will be ignored by screen readers and not given any alternative text.
必填，当浏览器无法载入图片时会改显示此文字，同时这也作为视障者语音帮助。Enable this option if the image is purely decorative and does not add any information to the content on the page. It will be ignored by screen readers and not given any alternative text.
None
必填，当浏览器无法载入图片时会改显示此文字，同时这也作为视障者语音帮助。Enable this option if the image is purely decorative and does not add any information to the content on the page. It will be ignored by screen readers and not given any alternative text.