h3 {
   text-align: center;
}
textarea {
   display: block;
   margin-left: auto;
   margin-right: auto;
   border: 2px solid SteelBlue;
   border-radius: 4px;
}
.button {
   transition-duration: 0.3s;
   color: black;
   border: 2px solid SteelBlue;
   border-radius: 4px;
   text-align: center;
   padding: 10px 10px;
   min-width: 75px;
   margin-bottom: 5px;
   text-decoration: none;
   display: inline-block;
   cursor: pointer;
}
.button:hover {
   background-color: SteelBlue;
   color: white;
}
.center {
   display: block;
   margin-left: auto;
   margin-right: auto;
   text-align: center;
}