You can add alt text to images in Squarespace to boost your website's SEO and make it more accessible.

Images of text How to write text descriptions when text is burned into the image and can’t be read by screen readers or braille displays. Part of: How to write text descriptions (alt text) in ...

The alt attribute holds a place for alternate text. This is important for accessibiity, or when slow internet might prevent the image from loading.

The basic editor Tumblr provides for posting, however, does not include a way to change the alignment of text or images, so to center an image you have to edit the post's HTML code manually.