body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen-Sans, Ubuntu, Cantarell, "Helbetica Neue", sans-serif;
  align-items: center;
  background-color: #000000;
  color: #FFFFFF;
  font-size: 90%;
}

.seo {
  display: none;
  visibility: hidden;
}

.box-s {
  background-color: #1C1C1E;
  width: auto;
  height: auto;
  margin: 10px;
  padding: 20px;
  border-radius: 20px;
}

.box-t {
  background-color: #2C2C2E;
  width: auto;
  height: auto;
  margin: 2%;
  padding: 20px;
  border-radius: 20px;
}


footer {
  justify-content: center;
  background-color: #2C2C2E;
  width: auto;
  height: auto;
  margin: 20px;
  padding: 10px;
  border-radius: 20px;
  position: sticky;
  bottom: 0;
}

st {
  font-weight: thick;
}

.sel-a {
  background-color: #2C2C2E;
  font-size: 110%;
  border: none;
  padding: 5px 20px;
  text-decoration: none;
  display: inline-block;
  margin: 4px 2px;
  cursor: pointer;
  border-radius: 20px;
  color: #ffffff;
}

a:link {
  color: #0a84ff;
}

a:visited {
  color: #bf5af2;
}

a:hover,
a:active {
  color: #ffa07a
}

.button {
  background-color: #FFFFFF;
  border-radius: 20px;
  box-shadow: 10px 10px 20px #5c5c5c;
  margin: auto;
}

.button:hover {
  translate: translateY(-5px);
}