body{
  background-color: linen;
  font-family: 'IM Fell Double Pica', serif;
}

div{
  text-align: center;
}

.outer{
  padding: 5%;
  text-align: center;
  margin: 0 auto;
}

.btn-group-vertical{
  display: inline-block;
  float: left;
  width: 30%;
}

.main{
  display: inline-block;
}

h1{
    font-family: 'IM Fell English', serif;
}

mark{
  background-color: rgba(0, 0, 0, .93);
  padding: 0px;
  margin: 10px 10px 10px 10px;
  text-align:justify;
  text-justify: inter-word;
}

mark:hover{
    background-color:  rgba(0, 0, 0, .8);
}