b > i::after {
  width: 40px;
  height: 40px;
  border-radius: 15% 70% 15% 70%;
  top: 35px;
  right: 40px;
  transform: rotate(79deg);
}

/* Ha ha, the tail is a bit tricky, isn't it? */
.github > i > i::before {
  width: 40px;
  height: 40px;
  border-radius: 50% 50%;
  top: 121px;
  left: 40px;
  background: transparent;
  border-bottom: 14px solid #fff;
  border-left: 6px solid transparent;
  border-right: 12px solid transparent;
  transform: rotate(15deg);
}

/* Let's try another one and see how it goe