h1 {
        text-align: center;
    }
    
    .marvel {
   float: left;
  padding: 15px;
  margin: 20px;
  text-align: center;
  width: 25%
}

 
    
    body {
        margin: auto;
        width: 1192px;
    }
    
.textbox {
  background-color: lightpink;
  width: 300px;
  border: 10px solid purple;
  padding: 25px;
  margin-right: 20px;
  
}
  
  .heading-center {
      text-align: center;
  }

.left {
  float: left;
  right: 0px;
  width: 300px;
  border: 10px solid purple;
  padding: 25px;
  margin: 20;
}

.right {
    float:right;
    margin-right:0px;
}