body, html {
  margin: 0;
  padding: 0;
  min-width:100%;
  min-height:100%;
  font: Arial 14px;
}
      
.dropbtn {
  background-color: white;
  padding: 16px;
  font-size: 16px;
  border: 1px solid black;
  cursor: pointer;
    box-shadow: 0px 8px 16px 0px rgba(0,0,0,0.2);
}

.dropbtn:hover, .dropbtn:focus {
  background-color: #efefef;
}

.dropdown {
  position: relative;
  display: inline-block;
}

.dropdown-content {
  display: none;
  position: absolute;
  background-color: white;
  min-width: 160px;
  box-shadow: 0px 8px 16px 0px rgba(0,0,0,0.2);
  z-index: 1;
}


.dropdown-content a {
  color: black;
  padding: 12px 16px;
  text-decoration: none;
  display: block;
}


.dropdown-content a:hover {background-color: #ddd}


.show {display:block;}


p {
  font-size: 20px;
  padding: 8px;
  font-family: Kohinoor Bangla;
  line-height: 24px;
}

h1 {
  font-family: Kohinoor Bangla;
  text-align: center;
  
}
  .amazing-techno-fact {
        box-shadow: 0 8px 16px 0 rgba(0, 0, 0, 0.2);
        margin: 10px;
      
        color: black;
        border-radius: 10px;
        height: 10%;
        width: 88%;
        display: block;
        font-size: 15px;
        border: 1px solid #b2b7b7;
        
        
      }