.middle {
  top: 50%;
  left: 50%;
  position: absolute;
  -ms-transform: translate(-50%, -50%);
  transform: translate(-50%, -50%);
}
.middle-horisontal {
  left: 50%;
  position: absolute;
  -ms-transform: translate(-50%);
  transform: translate(-50%);
}

.middle-vertical {
  top: 50%;
  position: absolute;
  -ms-transform: translate(-50%);
  transform: translate(-50%);
}

h1 {
  color: #00ffff;
  margin: 0;
}

body {
  margin: 0px;
  text-align: center;
  font-family: Arial, Helvetica, sans-serif;
  background-repeat: repeat-y;
  width: 100%;
  background: url(https://cdn.glitch.com/64fac721-d370-4e16-95b0-97b430817407%2Fkiurwjvhqj.jpeg?v=1571572404408) no-repeat center center fixed; 
  -webkit-background-size: cover;
  -moz-background-size: cover;
  -o-background-size: cover;
  background-size: cover;
}

h2 {
  color: white;
}

h3{
  color: white;
}

h4{
  color: white;
}

h5{
  color: white;
}

.buttona:link, .buttona:visited {
  background-color: black;
  color: white;
  padding: 14px 25px;
  text-align: center;
  text-decoration: none;
  display: inline-block;
}

.buttona:hover, .buttona:active {
  background-color: #999999;
}

#navbar {
  list-style-type: none;
  margin: 0;
  padding: 0;
  top: 0;
  position: fixed;
  width: 100%;
  overflow: hidden;
  display: flex;
}
#navbar li {
  float: left;
  flex: 1 0 auto;
  width: 100px;
}
#navbar li a {
  padding: 15px;
  display: block;
  font-weight: bold;
}

.header {
  padding: 286px;
  text-align: center;
  color: white;
}

button {
  background-color: black;
  border: none;
  color: white;
  padding: 15px 32px;
  text-align: center;
  text-decoration: none;
  display: inline-block;
  font-size: 16px;
}

.footer {
  position: fixed;
  left: 0;
  bottom: 0;
  width: 100%;
  background-color: black;
  color: white;
  text-align: center;
}

p {
  color: white;
  font-size: 115%;
  margin-left: 0;
  font-weight: bold;
  margin-left: 5px;
  margin-right: 5px;
}

.top {
  float: top;
}
.justify {
  text-align: justify;
}