<?php
$cor_fundo = "1D1D1D"; 
$cor_texto = "067980"; 
$url_custom = "http://avancar.speedtestcustom.com";
?>
<!DOCTYPE html>
<html>
<head>
<title><?php echo "$titulo "; ?></title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="shortcut icon" href="/favicon.ico" type="image/x-icon">
<link rel="icon" href="/favicon.ico" type="image/x-icon">
<style type="text/css">
  html, body {
    font-family: Lucida Grande, sans-serif;
    color: #<?php echo "$cor_texto"; ?>;
    background: #<?php echo "$cor_fundo"; ?>;
  }
  .iframe-placeholder {
    background: url('data:image/svg+xml;charset=utf-8,<svg xmlns="http://www.w3.org/2000/svg" width="100%" height="100%" viewBox="0 0 100% 100%"><text fill="%23<?php echo "$cor_texto"; ?>" x="50%" y="50%" font-family="\'Lucida Grande\', sans-serif" font-size="38" text-anchor="middle">Carregando</text></svg>') 0px 0px no-repeat;
  }
</style>
</head>
<body>
<iframe class="iframe-placeholder" width="100%" height="600px" scrolling="no" frameborder="0" src="<?php echo "$url_custom"; ?>"></iframe>
</body>
</html>