.modal-mask {
  position: fixed;
  z-index: 9998;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, .5);
  display: table;
  transition: opacity .3s ease;
}

.modal-wrapper {
  display: table-cell;
  vertical-align: middle;
}

.modal-container {
  width: 300px;
  margin: 0px auto;
  padding: 20px 30px;
  background-color: #fff;
  border-radius: 2px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, .33);
  transition: all .3s ease;
  font-family: Helvetica, Arial, sans-serif;
}

.modal-header h3 {
  margin-top: 0;
  color: #42b983;

  /* Uses Bootstrap stylesheets for styling, see linked CSS*/
body {
  background-color: #fff;
}

.panel {
  width: 80%;
  margin: 2em auto;
}

.bootstrap-basic {
  background: white;
}

.panel-body {
  width: 90%;
  margin: 2em auto;
}

.helper-text {
  color: #8A6D3B;
  font-size: 12px;
  margin-top: 5px;
  height: 12px;
  display: block;
}

/* Braintree Hosted Fields styling classes*/
.braintree-hosted-fields-focused { 
  border: 1px solid #0275d8;
  box-shadow: inset 0 1px 1px rgba(0,0,0,.075),0 0 8px rgba(102,175,233,.6);
}

.braintree-hosted-fields-focused.focused-invalid {
  border: 1px solid #ebcccc;
  box-shadow: inset 0 1px 1px rgba(0,0,0,.075),0 0 8px rgba(100,100,0,.6);
}

@media (max-width: 670px) {
  .btn {
    white-space: normal;
  }
}