@import url('https://fonts.googleapis.com/css?family=Roboto');
body {
  font-family: 'Roboto', sans-serif;
  background-color: #f2f2f2;
}
h1 {
  text-align: center;
  font-family: 'Roboto', sans-serif;
}
form {
  display: flex;
  justify-content: center;
  align-items: center;
  margin-top: 50px;
}
input[type="file"] {
  margin-right: 10px;
}

button {
  background-color: #3498db;
  color: white;
  border-radius: 5px;
  padding: 10px 15px;
  border: none;
}

button:hover {
  background-color: #2980b9;
  cursor: pointer;
}

button:active {
  background-color: #2980b9;
}

button {
  box-shadow: 0px 8px 15px rgba(0, 0, 0, 0.1);
}

button {
  background: linear-gradient(to bottom, #3498db, #2980b9);
}
progress-bar {
    width: 100%;
    height: 20px;
    background-color: #f2f2f2;
}