style.css

html, body {
  height: 100%;
  width: 100%; 
}
h1{
  text-align: center;
  color: #28e0b2;
}
div.gallery {
  height:250px;
  width: 250px;
  background-color: orange;
  margin: 5px;
  border: 2px solid #6b6363;
  float: left;
  width: 180px;
  border-radius:5px;
  box-shadow:0 2px 2px;
}

div.gallery:hover {
  border: 1px solid #777
}
.gallery:hover{
  background-color: #f2ec33;
}

div.gallery img {
  width: 100%;
  height: auto;
}

div.desc {
  padding: 15px;
  text-align: center; 
  color: #1c15e8;
}
div.k button{
/*   text-align:center; */
  background-color: #28e0b2;
  border: none;
  border-radius: 5px;
  color: white;
  padding: 15px 32px;
  text-align: center;
  text-decoration: none;
  display: inline-block;
    font-size: 20px;
}
div.p{
  text-align:center;
}
/* #myVideo {
  position: fixed;
  right: 0;
  bottom: 0;
  min-width: 100%;
  min-height: 100%;
} */
.content {
  position: fixed;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  color: #f1f1f1;
  width: 100%;
  padding: 20px;
}

#myBtn {
  width: 200px;
  font-size: 18px;
  padding: 10px;
  border: none;
  background: #000;
  color: #fff;
  cursor: pointer;
}

#myBtn:hover {
  background: #ddd;
  color: black;
}
#myVideo {
  position: absolute;
  right: 0;
  bottom: 0;
}