<div class="container-fluid">
    <div class="row">
        <div class="col-md-4 col-lg-3">
            <div class="card text-center tool-1 m-20">
                <a href="whois.php" class="text-white">
                    <i class="fa fa-globe fa-5x"></i>
                    <h5 class="mb-0">WHOIS</h5>
                </a>
            </div>
        </div>
        <div class="col-md-4 col-lg-3">
            <div class="card text-center tool-2 m-20">
                <a href="dnslookup.php" class="text-white">
                    <i class="fa fa-eye fa-5x"></i>
                    <h5 class="mb-0">DNS Lookup</h5>
                </a>
            </div>
        </div>
        <div class="col-md-4 col-lg-3">
            <div class="card text-center tool-3 m-20">
                <a href="csr.php?action=new" class="text-white">
                    <i class="fa fa-unlock-alt fa-5x"></i>
                    <h5 class="mb-0">CSR Generator</h5>
                </a>
            </div>
        </div>
        <div class="col-md-4 col-lg-3">
            <div class="card text-center tool-4 m-20">
                <a href="csr.php?action=decode" class="text-white">
                    <i class="fa fa-unlock fa-5x"></i>
                    <h5 class="mb-0">CSR Decoder</h5>
                </a>
            </div>
        </div>
    </div>
</div>
