(alt attribute of the form alt="some text" will cause the "some text" to display when if for any reasons the picture cannot be displayed. It will also cause the text to be audible when a vision impaired visitor using screen reading software visit a webpage with pictures.)
Let's upload a picture here while in the COMPOSE mode of the post editor. Below will be what you will see in the post editor:
When you hover your mouse over the picture, the mouse cursor will change to a cross
Click on it and the picture become highlighted and a row with options appear below the picture
Click on PROPERTIES and a popup appears:
Then just type in whatever title text and alt text you find suitable and click OK and it is done.
|Kelisa car wing mirror broken|
Note that you can also make the picture small, medium, large, extra large, positioned left, center, right, also add caption:
Try hovering your mouse cursor on the picture above and note what you can see. Note that there is also a caption.