¿Cómo crear un generador de contraseñas seguras en Blogger?

<!-- Random Password Generator Tool By www.miwebperfecta.com -->
<div style="display:flex;justify-content:center;">
<div class="password-container">
<span class="password-title">Random Password Generator</span>
 <input id="generated-password" placeholder="Create Password" readonly="" />
 <button onclick="getPassword()">Generate Password</button>
</div>
</div>

<style type="text/css">
@import url('https://fonts.googleapis.com/css2?family=League+Spartan:wght@400;700&display=swap');
.password-container{position:relative;background:#fff;max-width:450px;width:100%;display:flex;justify-content:center;align-items:center;flex-direction:column;padding:34px;border-radius:6px;box-shadow:0 0 8px 0 rgba(0,0,0,.08)}
.password-container span.password-title{font-family:'League Spartan',sans-serif;font-weight:700;font-size:22px;color:#555;line-height:1.4rem}
.password-container input{position:relative;width:100%;height:48px;border:1px solid #e8e8e8;margin:15px 0 10px;background:#fff;border-radius:6px;font-family:'League Spartan',sans-serif;font-weight:400;font-size:1rem;color:#555;padding:0 15px;outline:none}
.password-container input::placeholder{color:#555}
.password-container button{display:inline-block;background:#4954f2;color:#fff;border-radius:6px;border:0;padding:12px 16px;font-family:'League Spartan',sans-serif;font-size:1rem;font-weight:400;margin:10px 0 0 0;border:1px solid #e8e8e8}
.tools-credit {display:none;opacity:0;}
</style>

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