我正在建立一个网站，我需要拥有15个HTML文件。我使用3个直接链接navbar和2个下拉菜单制作了nav-items。 如何使下拉菜单在点击时不显示但在鼠标悬停时显示，并在单击时将我发送到下拉href链接？

我试图将nav-item类和dropdown-menu类放在一起，但是它不起作用。

有我的导航栏：

    <nav class="navbar navbar-expand-lg navbar-light bg-white">
      <div class="container">
        <a class="navbar-brand" href="index.html"><img src="img/logotxt.png" width="150"></a>
        <button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarSupportedContent" aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation">
          <span class="navbar-toggler-icon"></span>
        </button>
        <div class="collapse navbar-collapse" id="navbarSupportedContent">
          <ul class="navbar-nav ml-auto text-uppercase font-weight-bold small">
            <li class="nav-item mr-3 pr-3 border-right active">
              <a class="nav-link p-0 text-blue" href="index.html">Domov</a>
            </li>
            <li class="nav-item mr-3 pr-3 border-right dropdown">
              <a class="nav-link p-0 text-blue dropdown-toggle" href="#" id="navbarDropdown" role="button" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
                O klubu
              </a>
              <div class="dropdown-menu" aria-labelledby="navbarDropdown">
                <a class="dropdown-item small" href="#">Dosežki</a>
                <a class="dropdown-item small" href="#">Zgodovina</a>
                <a class="dropdown-item small" href="#">Zanimivosti</a>
              </div>
            </li>
            <li class="nav-item mr-3 pr-3 border-right text-blue">
              <a class="nav-link p-0 text-blue" href="#">Prva ekipa</a>
            </li>
            <li class="nav-item mr-3 pr-3 border-right dropdown">
              <a class="nav-link p-0 text-blue dropdown-toggle" href="#" id="navbarDropdown" role="button" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
                Rezultati
              </a>
              <div class="dropdown-menu" aria-labelledby="navbarDropdown">
                <a class="dropdown-item small" href="#">Španska liga</a>
                <a class="dropdown-item small" href="#">Španski pokal</a>
                <a class="dropdown-item small" href="#">Liga prvakov</a>
              </div>
            </li>
            <li class="nav-item text-blue">
              <a class="nav-link p-0 text-blue" href="#">Kontakt</a>
            </li>
          </ul>
        </div>
      </div>
    </nav>