* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

.main {
  width: 100%;
}

.app_box {
  display: grid;
  grid-template-columns: 3fr;
  justify-content: center;
  align-items: center;
}

#testing {
  margin: 1rem;
  border-radius: 0.2rem;
  box-shadow: 1px 1px 3px rgba(0, 0, 0, 0.5);
  padding: 0.6rem;
}

textarea#testing {
  border: none;
  background-color: transparent;
  resize: none;
  outline: none;
}

.center {
  display: flex;
  justify-content: center;
}

.kpn {
  background-color: #00c300;
  height: 7rem;
  flex-direction: column;
  align-items: center;
}

.kpn h1 {
  color: #fff;
  text-align: center;
}

.send {
  padding: 0.4rem 1rem;
  border-radius: 0.2rem;
  border: none;
  background-color: #333;
  color: #fff;
  box-shadow: 1px 1px 3px rgba(0, 0, 0, 0.5);
  margin-bottom: 1rem;
}

.send:hover {
  color: #ff9900;
  transform: scale(0.98);
}

.app {
  max-width: 100%;
  overflow-wrap: break-word;
  margin: 1rem;
  margin-bottom: 4rem;
}

.app_border {
  border: 1px solid #eee;
  border-radius: 0.2rem;
  box-shadow: 1px 1px 3px rgba(0, 0, 0, 0.5);
  padding: 0.6rem;
}