<form action="https://www.coinpayments.net/index.php" method="post" >
    <input type="hidden" name="cmd" value="_pay_simple">
    <input type="hidden" name="reset" value="1">
    <input type="hidden" name="merchant" value="f59cd6a6e0d2ed6dddce7f667b0888d7">
    <input type="hidden" name="item_name" value="GanemosJuntos.com">
    <input type="hidden" name="currency" value="USD">
    <input type="hidden" name="amountf" value="6.00000000">
    <input type="hidden" name="want_shipping" value="0">
    <input type="hidden" name="success_url"  value="https://www.google.com/">
    <input type="hidden" name="cancel_url"  value="https://www.facebook.com/">
    <label class="btn"> Ser miembro activo
    <input type="image" src="imagen/logo.png"  class="pagar">
    </label>
</form>