How to hide image broken Icon using only CSS/HTML?

Question

How can I hide the broken image icon? Example:

I have an image with error src:

Answer 1

Found a great solution at https://bitsofco.de/styling-broken-images/

img {  
  position: relative;
}

/* style this to fit your needs */
/* and remove [alt] to apply to all images*/
img[alt]:after {  
  display: block;
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: #fff;
  font-family: 'Helvetica';
  font-weight: 300;
  line-height: 2;  
  text-align: center;
  content: attr(alt);
}