Problem/Motivation
I found some image, video and input tags they have forward slash in core files. I also found those tags under Compose Tips documentation page. http://drupal8.dd:8083/filter/tips
I also found some image tags they have no Alt attributes. If you go to create any image fields, you can see Alt attribute is recommended for image fields.
Currently has
<img src="" data-align="left" />
<video src="" data-align="center" />
<input{{ attributes }} />Proposed resolution
I think, we should remove forward slash for those tags. Its HTML5 standard. Also search engine need image Alt attribute.
