this is my code , how do I add the pattern that Passwor and RepeatPasswor must be the same?
<form>
<div class="input-container">
<input type="text" id="Usernam" required="required" pattern=".{4,}" title="Devi inserire almeno 4 caratteri"/>
<label for="Usernam">Username</label>
<div class="bar"></div>
</div>
<div class="input-container">
<input type="password" id="Passwor" required="required" pattern=".{4,}" title="Devi inserire almeno 4 caratteri"/>
<label for="Passwor">Password</label>
<div class="bar"></div>
</div>
<div class="input-container">
<input type="password" id="RepeatPasswor" required="required" pattern=".{4,}" title="Devi inserire almeno 4 caratteri"/>
<label for="RepeatPasswor">Ripeti Password</label>
<div class="bar"></div>
</div>
<div class="button-container">
<button id="reg" type="button" ><span>Registrami</span></button>
</div>
</form>