@import url("https://fonts.googleapis.com/css?family=Nunito+Sans");
:root {
  --blue: #0e0620;
  --white: #fff;
  --green: #2ccf6d;
}

.btn {
  z-index: 1;
  overflow: hidden;
  background: transparent;
  position: relative;
  padding: 8px 50px;
  border-radius: 30px;
  cursor: pointer;
  font-size: 1em;
  letter-spacing: 2px;
  -webkit-transition: 0.2s ease;
  transition: 0.2s ease;
  font-weight: bold;
  margin: 5px 0px;
}

.btn.green {
  border: 4px solid var(--green);
  color: var(--blue);
}

.btn.green:before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 0%;
  height: 100%;
  background: var(--green);
  z-index: -1;
  -webkit-transition: 0.2s ease;
  transition: 0.2s ease;
}

.btn.green:hover {
  color: var(--white);
  background: var(--green);
  -webkit-transition: 0.2s ease;
  transition: 0.2s ease;
}

.btn.green:hover:before {
  width: 100%;
}
.not-top-img {
  overflow: visible !important;
}