#mc_embed_signup {
  position: fixed;
  top: 100px;
  left: 100px;
  padding: 12px;
  width: 400px;
  background: rgba(230, 230, 230, 0.85);
  color: #222;
  border: solid 1px #aaa;
  border-radius: 4px;
  z-index:10;
  font:14px Helvetica,Arial,sans-serif;
}