HTML image not showing in Gmail

Question

I\'m sending an e-mail newsletter in HTML. Inside the HTML I have something like

Answer 1

Late to the party but here goes... I have experienced this problem as well and it was solved with the following:

• Including the scheme in the src url (using "//" does not work - use full scheme EG: "https://")
• Including width and height attributes
• Including style="display:block" attribute
• Including both alt and title attributes

EG: