a.main_button {
   margin-top: 4px;
   color: black;
   background-color: #F2F4B9;
   text-align: center;
   display: inline;
   width: 120px;
   border-width: 2px;
   border-color: black;
   border-style: solid;
   padding: 2px;
   text-decoration: none;
   font-weight: bold;
   font-size: 90%;
}

a.main_button:hover {
   color: red;
   background-color: #FDE801;
}