:root {
  --bs-font-sans-serif: Poppins, sans-serif;
  --bs-primary: #212529;
  --dk-bgd-col: #212529;
  --lt-bgd-col: whitesmoke;
}

body,
h1,
h2,
h3,
h4,
h5,
h6,
p {
  font-family: var(--bs-font-sans-serif);
}

footer {
  color: white;
  background-color: var(--dk-bgd-col);
  text-align: center;
  border: darkcyan;
  border-style: solid;
  border-bottom: 0;
  border-left: 0;
  border-right: 0;
}

#displayQuote {
  margin: auto;
}

#quoteAuthor,
#displayQuote p {
  font-size: small;
}

@-webkit-keyframes spin {
  0% {
    -webkit-transform: rotate(0deg);
  }
  100% {
    -webkit-transform: rotate(360deg);
  }
}

@keyframes spin {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}

/* Add animation to "page content" */
.animate-bottom {
  position: relative;
  -webkit-animation-name: animatebottom;
  -webkit-animation-duration: 1s;
  animation-name: animatebottom;
  animation-duration: 1s;
}

@-webkit-keyframes animatebottom {
  from {
    bottom: -100px;
    opacity: 0;
  }
  to {
    bottom: 0px;
    opacity: 1;
  }
}

@keyframes animatebottom {
  from {
    bottom: -100px;
    opacity: 0;
  }
  to {
    bottom: 0;
    opacity: 1;
  }
}

#myDiv {
  display: none;
  text-align: center;
}

#myBtn {
  display: none;
  position: fixed;
  bottom: 20px;
  right: 30px;
  z-index: 99;
  font-size: 18px;
  border: none;
  outline: none;
  background-color: var(--dk-bgd-col);
  color: var(--lt-bgd-col);
  cursor: pointer;
  padding: 15px;
  border-radius: 4px;
}

#myBtn:hover {
  background-color: #555;
}