button.php

<?php
echo "<html>";
echo "<head>";
echo "<style>";
echo ".button {
    background-color: #4CAF50; /* Green */
    border: none;
    color: white;
    width: 150px;
    padding: 15px 32px;
    text-align: center;
    text-decoration: none;
    display: inline-block;
    font-size: 20px;
    margin: 4px 2px;
    cursor: pointer;

}


.button1 {background-color: #f44336;} /* Red */

</style>
</head>
<body>";

echo "<button class='button'>Green</button>";
echo "<button class='button button1'>Red</button>";


echo "</body>";
echo "</html>";
 ?>