body {
}
.buttons{
     width: 100%;
     height: 40px;
     background-color: darkblue;
     opacity: .7;
     line-height: 40px;
     text-align: center;
     font-size: 17px;
     margin: 2px;
     color:white;
     border-radius:6px;
     font-weight:bold;
  }
.buttons:hover{
     background-color:forestgreen;
}