Merhabalar kodlar nedense yan yana gelmiyor yardımcı olabilirmisiniz ?
<div class="content">
<div class="row">
<div class="col-12">
<div class="card">
<div class="card-header">
<h3 class="mb-0">Paket Satın Almalısın!</h3>
</div>
<div class="card-body">
<center>
<div class="row">
<div class="col"><br>
<div class="card" style="width: 18rem;">
<img class="card-img-top" src="img/serveralan.png" alt="TS3 LOGO">
<div class="card-body">
<h1 class="card-title">TEAMSPEAK 3 Server - 1</h1>
<p class="card-text">256 Kişilik Slot</p>
<p class="card-text">Türkiye Lokasyon</p>
<p class="card-text">Hemen Kurulum ve Teslimat</p>
<p class="card-text">TS3 Yönetim Paneli</p>
<p class="card-text">SinusBot Panel Hizmeti Yok</p>
<p class="card-text">0-20ms> Ping</p>
<p class="card-text">DDoS Korumalı</p>
<form method="post">
<input name="slot" style="display:none;" value="256">
<button class="btn btn-primary">Satın Al (5 TL)</button>
</form>
</div>
</div>
</div>
<div class="col"><br>
<div class="card" style="width: 18rem;">
<img class="card-img-top" src="img/serveralan.png" alt="TS3 LOGO">
<div class="card-body">
<h1 class="card-title">TEAMSPEAK 3 Server - 2</h1>
<p class="card-text">512 Kişilik Slot</p>
<p class="card-text">Türkiye Lokasyon</p>
<p class="card-text">Hemen Kurulum ve Teslimat</p>
<p class="card-text">TS3 Yönetim Paneli</p>
<p class="card-text">1 Adet SinusBot Panel</p>
<p class="card-text">0-20ms> Ping</p>
<p class="card-text">DDoS Korumalı</p>
<form method="post">
<input name="slot" style="display:none;" value="512">
<button class="btn btn-primary">Satın Al (7 TL)</button>
</form>
</div>
</div>
</div>
<div class="col"><br>
<div class="card" style="width: 18rem;">
<img class="card-img-top" src="img/serveralan.png" alt="TS3 LOGO">
<div class="card-body">
<h1 class="card-title">TEAMSPEAK 3 Server - 3</h1>
<p class="card-text">1024 Kişilik Slot</p>
<p class="card-text">Türkiye Lokasyon</p>
<p class="card-text">Hemen Kurulum ve Teslimat</p>
<p class="card-text">TS3 Yönetim Paneli</p>
<p class="card-text">2 Adet SinusBot Panel</p>
<p class="card-text">0-20ms> Ping</p>
<p class="card-text">DDoS Korumalı</p>
<form method="post">
<input name="slot" style="display:none;" value="1024">
<button class="btn btn-primary">Satın Al (10 TL)</button>
</form>
</div>
</div>
<div class="col"><br>
<form method="post" action="page/hizmet.php">
<div class="card" style="width: 18rem;">
<img class="card-img-top" src="img/serveralan.png" alt="TS3 LOGO">
<div class="card-body">
<h1 name="urunname" class="card-title">TeamSpeak 3 Bayilik - 1</h1>
<input name="urunname" style="display:none;" value="TeamSpeak 3 Bayilik - 1">
<p class="card-text">1024 Kişilik Slot</p>
<p class="card-text">Türkiye Lokasyon</p>
<p class="card-text">Hemen Kurulum ve Teslimat</p>
<p class="card-text">TS3 Yönetim Paneli</p>
<p class="card-text">2 Adet SinusBot Panel</p>
<p class="card-text">0-20ms> Ping</p>
<p class="card-text">DDoS Korumalı</p>
<?php
$emailadres = $_SESSION['user_email'];
?>
<input name="musterimail" style="display:none;" value="<?php echo $emailadres ?>">
<input name="paketfiyat" style="display:none;" value="10">
<button class="btn btn-primary">Satın Al (10 TL)</button>
</form>
</div>
</div>
<div class="col"><br>
<form method="post" action="page/hizmet.php">
<div class="card" style="width: 18rem;">
<img class="card-img-top" src="img/serveralan.png" alt="TS3 LOGO">
<div class="card-body">
<h1 name="urunname" class="card-title">TeamSpeak 3 Bayilik - 2</h1>
<input name="urunname" style="display:none;" value="TeamSpeak 3 Bayilik - 2">
<p class="card-text">1024 Kişilik Slot</p>
<p class="card-text">Türkiye Lokasyon</p>
<p class="card-text">Hemen Kurulum ve Teslimat</p>
<p class="card-text">TS3 Yönetim Paneli</p>
<p class="card-text">2 Adet SinusBot Panel</p>
<p class="card-text">0-20ms> Ping</p>
<p class="card-text">DDoS Korumalı</p>
<?php
$emailadres = $_SESSION['user_email'];
?>
<input name="musterimail" style="display:none;" value="<?php echo $emailadres ?>">
<input name="paketfiyat" style="display:none;" value="10">
<button class="btn btn-primary">Satın Al (20 TL)</button>
</form>
</div>
</div>
<div class="col"><br>
<form method="post" action="page/hizmet.php">
<div class="card" style="width: 18rem;">
<img class="card-img-top" src="img/serveralan.png" alt="TS3 LOGO">
<div class="card-body">
<h1 name="urunname" class="card-title">TeamSpeak 3 Bayilik - 3</h1>
<input name="urunname" style="display:none;" value="TeamSpeak 3 Bayilik - 3">
<p class="card-text">1024 Kişilik Slot</p>
<p class="card-text">Türkiye Lokasyon</p>
<p class="card-text">Hemen Kurulum ve Teslimat</p>
<p class="card-text">TS3 Yönetim Paneli</p>
<p class="card-text">2 Adet SinusBot Panel</p>
<p class="card-text">0-20ms> Ping</p>
<p class="card-text">DDoS Korumalı</p>
<?php
$emailadres = $_SESSION['user_email'];
?>
<input name="musterimail" style="display:none;" value="<?php echo $emailadres ?>">
<input name="paketfiyat" style="display:none;" value="10">
<button class="btn btn-primary">Satın Al (10 TL)</button>
</form>
</div>
</div> 
