div.mainbody{
    border-radius: 25px;
  border: 2px solid antiquewhite;
  padding: 20px;
  width: 270px;
  height: 350px;  
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

h1.head {
    font-family: 'Exo 2', sans-serif;   
    text-align: center;
    color: antiquewhite;
}

p.para{
    font-family: 'Exo 2', sans-serif;  
    text-align: center;
    color: antiquewhite;
}

body, html {
  height: 95%;
  }

body {
  height: 100%;
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
}

.btn {
  background-color: black;
  border: none;
  color: white;
  padding: 16px 32px;
  text-align: center;
  font-size: 16px;
  margin: 4px 2px;
  opacity: 0.6;
  transition: 0.3s;
  border-radius: 50px;
  font-family: 'Exo 2', sans-serif; 
}

.btn:hover {opacity: 2}

p.cont{
  font-family: 'Exo 2', sans-serif; 
  color: antiquewhite;
}