html {
  position: relative;
  min-height: 100%;
}

body {
  padding-top: 92px;
  margin-bottom: 480px;
}

a:hover {
  text-decoration: none;
}

.btn:hover {
  color: white;
  text-decoration: none;
}

.banner-img {
  padding-top: 3rem;
  max-width: 500px;
  margin: 0 auto;
}

.validation-error {
  font-size: 1rem;
  color: red;
  margin: 0 auto;
}

.instruction {
  width: 80%;
}

.text-muted {
  font-size: 30px;
  margin: 1rem auto 2rem;
}

.access-form {
  width: 100%;
  max-width: 500px;
  padding-left: 2rem;
  padding-right: 2rem;
  padding-bottom: 3rem;
  margin: 0 auto;
}

.access-code-input {
  border-radius: 10px;
  border: 0.1rem solid #221f5f;
  outline: 0px !important;
  padding: 1rem;
  width: 80%;
  max-width: 20rem;
  height: 4rem;
  margin: 0 auto 1rem;
  font-size: 1.5rem;
  text-align: center;
}

.join-button {
  box-shadow: 0px 0px 2px 0px #3dc21b;
  background-color: #44c767;
  border-radius: 1rem;
  border: 1px solid #18ab29;
  outline: 0px !important;
  display: inline-block;
  cursor: pointer;
  color: #ffffff;
  font-family: Arial;
  font-size: 1.5rem;
  text-decoration: none;
  text-shadow: 0px 1px 0px #2f6627;
  text-align: center;
  height: 5rem;
  width: 80%;
  max-width: 20rem;
  margin: 2rem auto;
}

.btn {
  appearance: none;
  -webkit-appearance: none;
  -moz-appearance: none;
  opacity: 1;
}

@media only screen and (min-width: 821px) and (max-width: 990px) {
  body {
    margin-bottom: 600px;
  }
}

@media only screen and (min-width: 701px) and (max-width: 820px) {
  body {
    margin-bottom: 700px;
  }
}

@media only screen and (max-width: 700px) {
  body {
    margin-bottom: 800px;
  }

  .banner-img {
    max-width: 325px;
  }

  .access-form {
    max-width: 325px;
  }
}