full script template to replace index.php temporary
<!DOCTYPE html>
<html lang="en-GB">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Coming Soon</title>
<style>
body{background-color:#FFFFFF;height:100%;overflow:hidden;}
.header-text{font-size:28px;color:#0E0F04;}
.content{max-width:440px;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);text-align:center;}
</style>
</head>
<body class="signals-plugin">
<div class="content">
<h1 class="header-text">Our site is launching soon.<br>Stay tuned.</h1>
</div><!-- .content -->
</body>
</html>