.mt-3, .my-3 {
  margin-top: 1rem !important;
}
label {
  display: inline-block;
  margin-top: 14px;
}
.form-control {
  display: block;
  width: 100%;
  height: calc(1.5em + .75rem + 2px);
  padding: .375rem .75rem;
  font-size: 1rem;
  font-weight: 400;
  line-height: 1.5;
  color: #495057;
  background-color: #fff;
  background-clip: padding-box;
  border: 1px solid #ced4da;
  border-radius: .25rem;
  transition: border-color .15s ease-in-out,box-shadow .15s ease-in-out;
max-width: 800px;
margin: auto;

}



textarea.form-control {
  height: auto;
}


.btn {
  display: inline-block;
  font-weight: 400;
  color: #212529;
  text-align: center;
  vertical-align: middle;
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
  background-color: transparent;
  border: 1px solid transparent;
    border-top-color: transparent;
    border-right-color: transparent;
    border-bottom-color: transparent;
    border-left-color: transparent;
  padding: .375rem .75rem;
  font-size: 1rem;
  line-height: 1.5;
  border-radius: .25rem;
  transition: color .15s ease-in-out,background-color .15s ease-in-out,border-color .15s ease-in-out,box-shadow .15s ease-in-out;
}

.btn-primary {
  color: #fff;
  background-color: #007bff;
  border-color: #007bff;
}

.mb-3{
  width: 100%;
max-width: 800px;
margin: auto;
}


  @media (min-width: 1200px){
.container {
  max-width: 1140px;
}
}

  @media (max-width: 980px){
.form-control {
  width: 90%;
}
}