Can I have HTML in my posts on the Flickr website?
Because there are pesky people out there who like doing pesky things to whatever they can get their hands on, we’ve made a few limits to the sort of HTML code you can post in fields like your description, or a person’s testimonial. You can’t post HTML in Flickr Mail, or the interests, favorite books or favorite movies fields on your profile. Even so, we encourage you to make your stuff look pretty, so if it’s within the guidelines below, go for it! Here’s the list: ‘tag’ => ‘attribute’ (allowed) ‘a’ => ‘strong’ => ‘b’ => ‘blockquote’ => ’em’ => ‘i’ => ‘img’ => ‘u’ => ‘s’ => ‘del’ => You can also easily embed a photo or video in a comment by putting the page URL in square brackets.