body{
  font-family: arial;
}
table{
  table-layout: fixed ;
  width: 100%;
}
td{
  width: 50% ;
  text-align: center;
  padding: 10px;
}

.center {
  display: block;
  margin-left: auto;
  margin-right: auto;
}

.buttonred{
  background-color: #FF0000;
  border: none;
  color: white;
  padding: 15px 32px;
  text-align: center;
  text-decoration: none;
  display: inline-block;
  font-size: 16px;
  border-radius: 10px;
  width:400px;
  max-width:100%;
}
.buttongreen {
  background-color: #008000;
  border: none;
  color: white;
  padding: 15px 32px;
  text-align: center;
  text-decoration: none;
  display: inline-block;
  font-size: 20px;
  border-radius: 10px;
  width:400px;
  max-width:100%;
}
.buttonredbigger {
  background-color: #FF0000;
  border: none;
  color: white;
  padding: 15px 32px;
  text-align: center;
  text-decoration: none;
  display: inline-block;
  font-size: 20px;
  border-radius: 10px;
  width:400px;
  max-width:100%;
}
.buttongreenbigger {
  background-color: #008000;
  border: none;
  color: white;
  padding: 15px 32px;
  text-align: center;
  text-decoration: none;
  display: inline-block;
  font-size: 20px;
  border-radius: 10px;
  width:400px;
  max-width:100%;
}
button > a{
  text-decoration:none;
  color:white;
}
button > a:link{
  color:white;
}
button > a:visited{
  color:white;
}
button > a:hover{
  color:white;
}
button > a:active{
  color:white;
}