.card {
   background-color: #f0f0f0;
}

.card .card-title {
   color: #007bff;
}

.card .card-text {
   font-size: 14px;
   border: none;
}

.container {
   margin-bottom: 40px;
}

footer {
   text-align: center;
   padding: 10px;
}

@media screen and (max-width: 900px) {
   .card {
      margin-bottom: 20px;
   }
}