@media (max-width: 600px) {
  .card {
    margin: 20px;
    padding: 10px;
    border: none !important;
  }
}

.full-window {
  width: 100%;
  height: 100vh;
  overflow: auto;
}

.container {
  max-width: 500px;
  margin: 50px auto;
  padding: 20px;
}

#upload {
  position: relative;
  overflow: hidden;
  width: 200px;
}

#upload input[type="file"] {
  position: absolute;
  left: 0;
  top: 0;
  opacity: 0;
}