jquery - Why aren't my drop down lists working? -


doing portfolio page challenge on fcc. can use html/css/bootstrap/jquery.

problem: working on navigation bar , drop down, clickable, highlighted buttons. copied instructions w3schools here not working.

/*--drop down buttons--*/ li a, .dropbtn { display: inline-block; color: white; text-align: center; padding: 14px 16px; text-decoration: none; }  li a:hover, .dropdown:hover .dropbtn { background-color: #4caf50; }  li.dropdown { display: inline-block; }  .dropdown-content { display: none; position: absolute; background-color: #000000; min-width: 160px; box-shadow: 0px 8px 16px 0px rgba(0,0,0,0.2); z-index: 1; /*how right:0; keep text going off screen?*/ right: 0; }  .dropdown-content { color: #ffffff; padding: 12px 16px; text-decoration: none; display: block; text-align: left; }  .dropdown-content a:hover {background-color: #4caf50}  .dropdown:hover .dropdown-content { display: block; }  <div class="container-fluid"> <!----nav bar ----> <ul> <li><a href="#home">home</a></li> <li class="dropdown" style="float:right"><a href="#about"  class="dropbtn">about</a> <div class="dropdown-content">   <a href="#">contact</a>   <a href="#">life in japan</a> </div> </li> <li><a href="#resume">resume</a></li> <li><a href="#projects">projects</a></li> </ul> <!---end nav bar----> </div>

this my project. code incorrect?

goal = create dropdown list "about" button. list highlight (as other nav buttons do) when hovered over.

note: codepen allows me import bootstrap , use css in separate box thats why no style tags there. css top, html follows

thank you

remove position:fixed ul or if want position:fixed menu remove overflow: hidden

ul {    list-style-type: none;    margin: 0;    padding: 0;    /*----not sure overflow does--->*/    overflow: hidden;    background-color: #111;      /*----fixes nav bar top---*/    /*position: fixed;*/    top: 0;    width: 100%;    font-family: sans-serif;  }    li {    float: left;  }  li {    display: block;    color: white;    text-align: center;    padding: 14px 16px;    text-decoration: none;  }    /*alert user current link*/  .active {    background-color: #4caf50;  }    /*--drop down buttons--*/  li a, .dropbtn {    display: inline-block;    color: white;    text-align: center;    padding: 14px 16px;    text-decoration: none;  }  li a:hover, .dropdown:hover .dropbtn {    background-color: red;  }      li.dropdown {    display: inline-block;  }    .dropdown-content {    display: none;    position: absolute;    background-color: #f9f9f9;    min-width: 160px;    box-shadow: 0px 8px 16px 0px rgba(0, 0, 0, 0.2);    z-index: 1;    right:0;  }    .dropdown-content {    color: blue;    padding: 12px 16px;    text-decoration: none;    display: block;    text-align: left;  }    .dropdown-content a:hover {    background-color: #00ffff;  }    .dropdown:hover .dropdown-content {    display: block;  }
<div class="container-fluid">    <!----nav bar ---->    <ul>      <li><a href="#home">home</a></li>      <li class="dropdown" style="float:right"><a href="#about" class="dropbtn">about</a>      <div class="dropdown-content">        <a href="#">contact</a>        <a href="#">life in japan</a>      </div>      </li>      <li><a href="#resume">resume</a></li>      <li><a href="#projects">projects</a></li>    </ul>  <!---end nav bar---->  </div>


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