body {
  font-family: Arial, sans-serif;
  background-color: #f4f4f4;
  margin: 0;
  padding: 20px;
}

form {
  padding: 10px;
}

.w3-panel {
  transition: opacity 1s;
}

.w3-panel.fade-out {
  opacity: 0;
}
.w3-card {
  background-color: white;
}
.mess-panel {
  position: fixed;
  left: 50%;
  bottom: 40px;
  transform: translateX(-50%);
  min-width: 250px;
  max-width: 90vw;
  z-index: 9999;
  box-shadow: 0 2px 8px rgba(0,0,0,0.2);
  padding: 16px 24px;
  border-radius: 8px;
  text-align: center;
  margin: 0;
}

.messageBox {
  background-color: #f0f0f0;
  width: 80%;
  color: #333;
  border: #333 1px solid;
  border-radius: 8px;
  padding: 10px;
  font-size: 1.2em;
  font-weight: bold;
  box-shadow: 0 2px 8px rgba(0,0,0,0.2);

}