* {
  -webkit-tap-highlight-color: transparent;
  -webkit-touch-callout: none;
  user-select: none;
}

body {
  margin: 0;
  font-family: Arial, sans-serif;
}
#nav {
  list-style-type: none;
  margin: 0;
  padding: 0;
  background-color: #333333;
  display: flex;
  justify-content: space-around;
  align-items: stretch;
  border-bottom-left-radius: 10px;
  border-bottom-right-radius: 10px;
}
#nav li {
  text-align: center;
  flex: 1 1 0;
}
#nav li a { display: grid;
  place-items: center;
  height: 100%;
  box-sizing: border-box;
  color: white;
  padding: 14px 16px;
  text-decoration: none;
}
#nav li a:hover {
  background-color: #111111;
}


input, textarea, button {
  border-radius: 12px;
  border: 1px solid #2c3e50;
}

button {
  border-radius: 7px;
  width: 100px;
  height: 30px;
  background-color: black;
  color: white;
  transition: transform 0.08s ease;
}

button:active {
  transform: translate(2px, 2px);
  box-shadow: -4px -4px 8px rgba(0,0,0,0.15);
}  

.license {
  background: #000;
  color: #fff;
  border: none;
  padding: 8px 18px;
  font-size: 13px;
  border-radius: 4px;
  cursor: pointer;
}