.ul-nav-bar>li {
  margin: 0 10px;
}

button {
  cursor: pointer;
}

h1 {
  font-size: xxx-large;
  line-height: 100%;
}

h2 {
  font-size: xx-large;
}

h3 {
  font-size: x-large;
}

p {
  font-size: large;
}