Animacja accordion w javascript

<!DOCTYPE html>
<html lang="pl">
<head>
    <meta charset="UTF-8">
    <title>Page Title</title>
    <meta name="viewport" content="width=device-width,initial-scale=1">
    <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.0.2/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-EVSTQN3/azprG1Anm3QDgpJLIm9Nao0Yz1ztcQTwFspd3yD65VohhpuuCOmLASjC" crossorigin="anonymous">
    <link rel="stylesheet" href="style.css">
</head>
<body>
    <div class="container">
        <div class="row tg">
            <div class="col-md-6 toggleClick">Click me to show</div>
            <div class="col-md-6 ukryty toggleMsg">message</div>
        </div>

        <div class="row tg">
            <div class="col-md-6 toggleClick">Click me to show</div>
            <div class="col-md-6 ukryty toggleMsg">message</div>
        </div>

    </div>

    <script type="text/javascript" src="main.js"></script>
    <script src="https://cdn.jsdelivr.net/npm/bootstrap@5.0.1/dist/js/bootstrap.bundle.min.js" integrity="sha384-gtEjrD/SeCtmISkJkNUaaKMoLD0//ElJ19smozuHV6z3Iehds+3Ulb9Bn9Plx0x4" crossorigin="anonymous"></script>
</body>
</html>

.tg div:first-child{
    padding: 10px;
    border: 1px solid #44aaaa;
}

.tg .ukryty.toggleMsg {
    background-color: rgba(255, 255, 255, 0);
    border:0;
    font-size:0;
    padding: 0;
    width:0;
}
.tg .toggleMsg{
    background-color: #44aaaa;
    border: 1px solid #44aaaa;
    color:white;
    max-width: 100%;
    padding: 10px;
}

let toggleItems = document.getElementsByClassName("toggleClick");
for(let i=0;i<toggleItems.length;i++){
    toggleItems[i].addEventListener("click", openHide);
}

function openHide(){
    let msg = this.parentNode.getElementsByClassName("toggleMsg")[0];
    if(msg.classList.contains("ukryty")){
        msg.classList.remove("ukryty");
        this.textContent = "Click to hide";
    }else{
        msg.classList += " ukryty";
        this.textContent = "Click me to show";    
    }
    msg.style.transition = "all 0.5s ease-out";
}