div {
  color: #222;
  background: #fff;
  width: 800px;
  padding: 60px;
  margin: 20px;
  position: relative;
}

@media (prefers-color-scheme: dark) { 
  div {
  color: #eee;
  background: #222222;
	}

  .center {
    filter: drop-shadow(0px 5px 5px #000000);
  }

  .warning-banner {
    padding: 5px;
    padding-left: 20px;
    margin-left: revert;
    margin-top: -10px;
    border: revert;
    border-left: 6px solid #ffcc00;
    background: #806600;
    color: revert;
    display: revert;
    border-radius: revert;
    filter: revert;
    width: 992px;
  }

  a {
    color: #5FB1D2;
  }

  body {
    background: rgb(15,15,15);
    background: radial-gradient(circle, rgba(15,15,15,1) 0%, rgba(20,20,20,1) 100%);
  }

  #header {
    background-color: #323232;
    filter: drop-shadow(0px 0px 5px #000000);
  }

  #header > li a {
    color: #ffffff;
  }

  #header > li a:hover {
    background-color: #222222;
  }

  .footer {
    color: #fff;
    background-color: #323232;
  }
}

@media (prefers-color-scheme: light) {
  div {
  color: #222;
  background: #fff;
	}
	
  .footer {
  color: #222;
  background: #e2e2e2;
	}

  .center {
    filter: drop-shadow(0px 5px 5px #777777);
  }

  .warning-banner {
    padding: 5px;
    padding-left: 20px;
    margin-left: revert;
    margin-top: -10px;
    border: revert;
    border-left: 6px solid #ffcc00;
    background: rgb(255, 235, 157);
    color: revert;
    display: revert;
    border-radius: revert;
    filter: revert;
    width: 992px;
  }

  a {
    color: blue;
  }

  body {
    background: rgb(189,189,189);
    background: radial-gradient(circle, rgba(245,245,245,1) 0%, rgba(200,200,200,1) 100%);
  }

  #header {
    background: #ffffff;
    filter: drop-shadow(0px 0px 5px #777777);
  }

  #header > li a {
    color: #000000;
  }

  #header > li a:hover {
    background-color: #e2e2e2;
  }
}

a:link { 
  text-decoration: none; 
}

a:visited { 
  text-decoration: none; 
}

a:hover { 
  text-decoration: none; 
}

a:active { 
  text-decoration: none; 
}

body {
  font-family: 'Roboto', san-serif;
}

h1 {
  background: -webkit-linear-gradient(#e3595a, #8189db);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  font-family: 'Zen Dots', cursive;
  font-size: 300%;
  text-align: center;
}

h2 {
  text-align: center;
}

.button-container {
  position: fixed;
  bottom: 5px;
  left: 5px;
  color: #fff;
  filter: drop-shadow(0 0 10px rgba(0, 0, 0, 1));
  background: revert;
  width: revert;
  padding: revert;
  margin: revert;
}

.button-container button {
  display: block;
  bottom: 5px;
  left: 5px;
}

.center {
  margin: auto;
  width: 1024px;
  margin-top: 100px;
  margin-bottom: 50px;
  z-index: 0;
}

.date {
  font-size: 0.8em;
  font-style: italic;
  display: block;
  font-family: 'Roboto', san-serif;
}	

.footer {
  padding: 60px;
  padding-top: 5px;
  padding-bottom: 5px;
  margin: auto;
  margin-top: 20px;
  width: 1024px;
  text-align: center;
  margin-bottom: 20px;
  z-index: 1;
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
}

.heading3 {
  font-size: 1.3em;
  text-decoration: underline;
  font-weight: bold;
  margin-top: 10px;
  display: inline-block;
}

.settings {
  position: fixed;
  filter: revert;
  color: revert;
  background: revert;
  border: revert;
  padding: revert;
  margin: revert;
  margin-left: 20px;
  margin-top: 0px;
}

#header {
  font-size: 1em;
  list-style-type: none;
  margin: 0;
  padding: 5px;
  overflow: hidden;
  width: 100%;
  position: fixed;
  top: 0;
  left: 0;
  z-index: 2;
  }

#header > li {
  float: left;
}
  
#header > li a {
  display: block;
  text-align: center;
  padding: 14px 16px;
  text-decoration: none;
  font-family: 'Roboto', sans-serif;
  font-size: 125%;
  margin-left: 0px;
  margin-right: 10px;
}

#header > .fullscreen {
  display: inline-block;
}

@media only screen and (max-width: 795px) {
  #header > .fullscreen {
    display: none;
  }
}

#test {
  color: initial;
  background: initial;
  width: 80px;
  padding: initial;
  margin: initial;
  position: fixed;
  margin-left: 20px;
}