footer
{
  margin-top: 20px;
  background-color: #bbbbbb;
  opacity: 0.7;
  height: 40px;
}

#footer
{
  height: 100%;
  display: flex;
  justify-content: space-around;
  align-items: center;
}

#footer h4
{
  size: 0.3em;
}

a
{
  color: black;
}