body {
  font-family: trade-gothic-next, sans-serif;
  font-weight: 300;
  font-style: normal;
  background-color: rgba(0, 0, 0, 0.5);
  background-image: url(../img/logo-full.svg);
  background-repeat: no-repeat;
  background-size: 15%;
  background-position: 50% 50%;
  height: 100vh;
  margin: 0;
}

h1 {
  text-align: center;
  margin: 80px 0;
}

.box {
  width: 100%;
  padding: 20px 0;
  background: rgba(0, 0, 0, 0.2);
  background-clip: padding-box;
  text-align: right;
  position: fixed;
  bottom: 0;
}

.button {
  font-size: 1em;
  padding: 10px;
  color: #fff;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.3s ease-out;
}
.button:hover {
  background: rgba(0, 0, 0, 0.5);
}

.overlay {
  position: fixed;
  top: 0;
  bottom: 0;
  left: 0;
  right: 0;
  background: rgba(0, 0, 0, 0.7);
  transition: opacity 500ms;
  visibility: hidden;
  opacity: 0;
  overflow-y: scroll;
}
.overlay:target {
  visibility: visible;
  opacity: 1;
}

.popup {
  margin: 70px auto;
  padding: 20px;
  background: #fff;
  border-radius: 5px;
  width: 80%;
  position: relative;
  transition: all 5s ease-in-out;
}

.popup h2 {
  margin-top: 0;
  color: #333;
}
.popup .close {
  position: absolute;
  top: 20px;
  right: 30px;
  transition: all 200ms;
  font-size: 30px;
  font-weight: bold;
  text-decoration: none;
  color: #333;
}
.popup .close:hover {
  color: rgba(0, 0, 0, 0.5);
}
.popup .content {
  max-height: 30%;
  overflow: auto;
  color: #222;
}