html,
body {
  height: 100%;
}

body {
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: "Nunito Sans";
  color: var(--black);
  font-size: 1em;
}

h1 {
  font-size: 7.5em;
  margin: 15px 0px;
  font-weight: bold;
}

h2 {
  font-weight: bold;
}

.btn {
  z-index: 1;
  overflow: hidden;
  background: transparent;
  position: relative;
  padding: 8px 50px;
  border-radius: 30px;
  cursor: pointer;
  font-size: 1em;
  letter-spacing: 2px;
  transition: 0.2s ease;
  font-weight: bold;
  margin: 5px 0px;
  border: 4px solid #2ccf6d;
  color: blue;
  text-decoration: none;
}

.btn:before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 0%;
  height: 100%;
  background: #2ccf6d;
  z-index: -1;
  transition: 0.2s ease;
}

.btn:hover {
  color: white;
  background: #2ccf6d;
  transition: 0.2s ease;
  text-decoration: none;
  cursor: pointer;
}

.btn:hover :before {
  width: 100%;
}

p{
  font-size: 18px;
}

@media screen and (max-width: 768px) {
  body {
    display: block;
  }
  .container {
    margin-top: 70px;
    margin-bottom: 70px;
  }
}