html,
body {
  margin: 0;
  background-color: #000000;
}

h1, h2, h3, h4, h5, h6 {
  color: white;
  text-shadow: 3px 3px 20px white, 0 0 20px blue;
  font-family: Sofia, serif;
}
p {
  color: white;
  text-align: justify;
  font-family: Arial, Helvetica, sans-serif;
  
}

.header {
  grid-area: header;
  background-color: #000000;
  padding: 0px;
  text-align: center;
  font-size: 30px;

}
article {
  float: left;
  width: 100%;
  height: auto; 
  background: #000000;
  padding: 10px;
  text-align: center;
}
.center {
  margin: auto;
  width: 100%;
  border: 5px solid #73AD21;
  padding: 10px;
  height: auto;
}
video {
  max-width: 100%;
  height: auto;
}
img {
  border-radius: 30px;
  text-align: center;
}
div.gallery {
  border: 0px solid #ccc;
}

div.gallery:hover {
  border: 0px solid #777;
}

div.gallery img {
  width: 100%;
  height: auto;
  border: 6px solid #777;
}

div.desc {
  padding: 10px;
  text-align: center;
}

* {
  box-sizing: border-box;
}

.responsive {
  padding: 40px;
  float: left;
  width: 24.99999%;
}

@media only screen and (max-width: 800px) {
  .responsive {
    width: 49.99999%;
    margin: 0 5 px 0;
  }
}

@media only screen and (max-width: 800px) {
  .responsive {
    width: 100%;
	}
}
section::after {
  content: "";
  display: table;
  clear: both;
}
.button {
  border-radius: 4px;
  background-color: #ff66b3;
  border: none;
  color: #000000;
  text-align: center;
  text-transform: uppercase;
  font-size: 80%;
  padding: 10px;
  width: 80%;
  transition: all 0.5s;
  cursor: pointer;
  margin: 5px;
}

.button span {
  cursor: pointer;
  display: inline-block;
  position: relative;
  transition: 0.5s;
}

.button span:after {
  content: '\00bb';
  position: absolute;
  opacity: 0;
  top: 0;
  center: -20px;
  transition: 0.5s;
}

.button:hover span {
  padding-right: 10px;
}

.button:hover span:after {
  opacity: 1;
  right: 0;
}

footer {
  grid-area: footer;
  color: #000000;
  padding: 1px;
  text-align: center;
  text-transform: uppercase;
}
table, th, td {
  color: black;
  border: 2px solid black;
  background-color: #19e6e6;
  text-align: center;
}

table {
  width: 100%;
  height: auto;
}

.topnav {
  overflow: hidden;
  background-color: #000000;
  text-align: center;
}

.topnav a {
  float: left;
  display: block;
  color: #b30047;
  text-align: center;
  padding: 14px 16px;
  text-decoration: none;
  font-size: 17px;
}

.topnav a:hover {
  background-color: #ddd;
  color: black;
}

.topnav a.active {
  background-color: #b30047;
  color: white;
}

.topnav .icon {
  display: none;
}

@media screen and (max-width: 600px) {
  .topnav a:not(:first-child) {display: none;}
  .topnav a.icon {
    float: right;
    display: block;
  }
}

@media screen and (max-width: 600px) {
  .topnav.responsive {position: relative;}
  .topnav.responsive .icon {
    position: absolute;
    right: 0;
    top: 0;
  }
  .topnav.responsive a {
    float: none;
    display: block;
    text-align: left;
  }
}
@media (max-width: 600px) {
   article {
    width: 100%;
    height: auto;
  }
}