body {
  /* background: url(/background.jpg) fixed; */
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
  height: 100vh;
}
.bg {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}
.cus-btn-submit {
  margin-bottom: 10px;
  display: inline-block;
  width: auto;
  background: transparent;
  color: #76bf0e;
  border-radius: 0px;
  box-sizing: border-box;
  border: 3px solid;
  padding-top: 10px;
  text-decoration: none;
}