html,body {
  height: 100%;
  overflow:hidden;
}

section {
  width: 100%;
  height: 100vh;
}



.btn-red{
  color: #fff;
  background-color: #c70d12;
  border-color: #c70d12;
}

.btn-green{
  color: #fff;
  background-color: #078519;
  border-color: #078519;
}

.m-jumbotron {
  position: relative;
  top: 50%;
  transform: translateY(-50%);
}

.head-size{
  height: 30vh;
}

.row{
  height: 100vh;
}

.display-title{

  font-size: 1.5rem;
}

.btn-circle-lg {
  width: 40px;
  height: 40px;
  padding: 6px 1px;
  border-radius: 20px;
  font-size: 12px;
  line-height: 1.33;
}

.responsive-img {
  width: 20px;
  max-width: 100%;
  height: auto;
}

.final-img{
  width: 50px;
}

.initial-img{
  width: 150px;
}


@media only screen and (min-width: 576px) {

  .display-title{
    /*  */
    font-size: 2rem;
  }

  .btn-circle-lg {
    margin-left: 1rem;
    width: 50px;
    height: 50px;
    padding: 10px 16px;
    border-radius: 25px;
    font-size: 24px;
    line-height: 1.33;
  }

  .responsive-img {
    width: 65px;
    max-width: 100%;
    height: auto;
  }

  .final-img{
    width: 90px;
  }

  .initial-img{
    width: 170px;
  }

}

@media only screen and (min-width: 768px) {

  .display-title{

    font-size: 2.5rem;
  }

  .btn-circle-lg {
    width: 60px;
    height: 60px;
    padding: 10px 16px;
    border-radius: 30px;
    font-size: 20px;
    line-height: 1.33;
  }

  .responsive-img {
    width: 80px;
    max-width: 100%;
    height: auto;
  }

  .final-img{
    width: 100px;
  }

  .initial-img{
    width: 200px;
  }

}

@media only screen and (min-width: 992px) {

  .display-title{

    font-size: 3rem;
  }

  .btn-circle-lg {
    width: 80px;
    height: 80px;
    padding: 10px 16px;
    border-radius: 40px;
    font-size: 24px;
    line-height: 1.33;
  }

  .responsive-img {
    width: 110px;
    max-width: 100%;
    height: auto;
  }

  .final-img{
    width: 130px;
  }

  .initial-img{
    width: 250px;
  }

}

@media only screen and (min-width: 1200px) {
  .display-title{
    font-size: 3.1rem;
  }

  .btn-circle-lg {
    width: 90px;
    height: 90px;
    padding: 10px 16px;
    border-radius: 45px;
    font-size: 26px;
    line-height: 1.33;
  }

  .responsive-img {
    width: 120px;
    max-width: 100%;
    height: auto;
  }

  .final-img{
    width: 150px;
  }

  .initial-img{
    width: 350px;
  }

}