/* Hide default login icon */
#idLoginControl .login-widget-icon {
  display: none;
}

/* Insert custom login image */
#idLoginControl {
  background-image: url('https://akathetaiotaomega.com/resources/2.png');
  background-size: contain;
  background-repeat: no-repeat;
  background-position: center;
  width: 40px;
  height: 40px;
  display: inline-block;
}