.post {
    width: 500px !important;
    border: 3px solid black;
    line-height: 1.5;
    margin: auto;
    margin-bottom: 40px;
}

.loader {
  border: 5px solid #9c4fff;
  border-top: 5px solid #fff;
  border-radius: 50%;
  width: 60px;
  height: 60px;
  animation: spin 2s linear infinite;
  margin: auto;
  margin-top: 10px;
  display: none;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

.hide {
    display: none;
}

.show {
    display: block;
}

.result-box {
    background-color: lightgrey;
}