<nav>
    <ul class="desktop-menu" id="desktopMenu">

      <li>
        <a id="home" href="#">
        <img src="https://eliya33.github.io/church/images/yonsei-logo-100x100.png" class="yonsei-logo" alt="Yonsei University Logo">LOGO NAME</a>
      </li>

      <li class="desktop-link">
        <a href="#">Link One</a>
        <a class="caret" href="#" onclick="caretDropdownOne(); return false;">&or;</a>
        <ul class="dropdown-menu" id="caretDropdownOne">
          <li><a href="#">Sublink One</a></li>
          <li><a href="#">Sublink Two</a></li>
          <li><a href="#">Sublink Three</a></li>
          <li><a href="#">Sublink Four</a></li>
          <li><a href="#">Sublink Five</a></li>
        </ul>
      </li>

      <li class="desktop-link">
        <a href="#">Link Two</a>
        <a class="caret" href="#" onclick="caretDropdownTwo(); return false;">&or;</a>
        <ul class="dropdown-menu" id="caretDropdownTwo">
          <li><a href="#">Sublink One</a></li>
          <li><a href="#">Sublink Two</a></li>
          <li><a href="#">Sublink Three</a></li>
          <li><a href="#">Sublink Four</a></li>
          <li><a href="#">Sublink Five</a></li>
        </ul>
      </li>

      <li class="desktop-link">
        <a href="#">Link Three</a>
        <a class="caret" href="#" onclick="caretDropdownThree(); return false;">&or;</a>
          <ul class="dropdown-menu" id="caretDropdownThree">
            <li><a href="#">Sublink One</a></li>
            <li><a href="#">Sublink Two</a></li>
            <li><a href="#">Sublink Three</a></li>
            <li><a href="#">Sublink Four</a></li>
            <li><a href="#">Sublink Five</a></li>
          </ul>
      </li>

      <li class="desktop-link">
        <a href="#">Link Four</a>
        <a class="caret" href="#" onclick="caretDropdownFour(); return false;">&or;</a>
        <ul class="dropdown-menu" id="caretDropdownFour">
          <li><a href="#">Sublink One</a></li>
          <li><a href="#">Sublink Two</a></li>
          <li><a href="#">Sublink Three</a></li>
          <li><a href="#">Sublink Four</a></li>
          <li><a href="#">Sublink Five</a></li>
        </ul>
      </li>

      <li class="desktop-link">
        <a href="regulations.html">Link Five</a>
        <a class="caret" href="#" onclick="caretDropdownFive(); return false;">&or;</a>
        <ul class="dropdown-menu" id="caretDropdownFive">
          <li><a href="#">Sublink One</a></li>
          <li><a href="#">Sublink Two</a></li>
          <li><a href="#">Sublink Three</a></li>
          <li><a href="#">Sublink Four</a></li>
          <li><a href="#">Sublink Five</a></li>
        </ul>
      </li>

      <li id="last-desktop-link" class="desktop-link">
        <a href="muut.html">Link Six</a>
      </li>

      <li id="mobile-menu">
        <a id="home2" href="index.html">
          <img src="https://eliya33.github.io/church/images/yonsei-logo-100x100.png" class="yonsei-logo" alt="Yonsei Univeristy Logo">
          <span id="logo-text">LOGO NAME</span>
        </a>

        <a id="mobile-icon-container" href="#" onclick="responsiveMenu(); return false;">
          <img id="mobile-icon" src="https://eliya33.github.io/church/images/mobile-menu-icon-125x125.png" alt="Mobile Menu Icon">
        </a>
      </li>

    </ul>
  </nav>
body {
  margin: 0;
}

/* 1. General Links */ 
img {
  width: 100%;
  display: block; /* To remove background color under images */
}

li {
  list-style-type: none; 
}

a, 
a:link, 
a:visited {
  color: #fff;
  display: block;
  font-size: 1.25em;
  font-weight: 500;
  padding: 1em;
  text-decoration: none;
}

a:hover, 
a:focus, 
a:active {
  background: #3277ae;
}

/* Removes border around images in menu for IE10 */
a img {
  border: 0;
}

/* 2. Desktop Nav Menu */
.desktop-menu {
  background: #002147;
  margin: 0;
  padding: .75em 0;
  position: absolute; /* Prevents parent ul from collapsing because of floated children li's. Alternative to overflow: auto/none; */
  top: 0;
  width: 100%;
  z-index: 1; /* Allows desktop menu to show over slider */
}

.desktop-link {
  float: left;
  margin-top: 1.75em;
  text-align: center;
}

  /* 2.1 Desktop Home Link */
  #home {
    border: 1px solid #fff;
    float: left;
    font-size: 1em; 
    margin: .5em 1em .5em 1em;
    padding: .75em;
  }

  #home, 
  #home:link, 
  #home:visited, 
  #home:hover, 
  #home:focus, 
  #home:active {
    color: #fff;
    background: none;
  }

  .yonsei-logo {
    margin: -.5em auto .5em auto;
    width: 4em;
  }

  /* 2.2 Desktop Dropdown-menu */
  a.caret,
  #mobile-menu, 
  .dropdown-menu {
    display: none; /* Removes mobile menu, caret links, and dropdown menu (when menu items are not hovered) on large screens */
  }

  .desktop-link:hover .dropdown-menu {
    display: block; /* Shows dropdown menu when menu items are hovered */
  }

  .dropdown-menu {
    background: #fff;
    box-shadow: 2px 2px 10px #777;
    font-size: .7em;
    padding: 0; 
    position: absolute;
    text-align: left;
    width: 20em;
  }

  .dropdown-menu a,
  .dropdown-menu a:link,
  .dropdown-menu a:visited {
    border-top: 1px solid #002147;
    color: #002147;
    font-size: 1.5em;
    font-weight: 600;
  }

  .dropdown-menu a:hover,
  .dropdown-menu a:focus,
  .dropdown-menu a:active {
    color: #fff;
  }

/* 3. Tablet/Mobile Nav Menu */ 
@media screen and (max-width: 1200px) {
  body {
    padding-top: 5.9em; /*  is not covered by menu bar */
  }
  
  .desktop-menu {
    padding: 0; /* Stops mobile nav from jumping up when mobile icon is clicked */
  }
  
  .desktop-link {
    text-align: left;
  }
  
  #mobile-menu {
    background: #002147;
    display: block; /* Shows mobile-menu on small screen menu */
    position: absolute;
    width: 100%;
  } 
  
  #mobile-icon-container {
    background: none;
    float: right;
    width: .35em;
  }
  
    /* 3.1 Tablet/Mobile Home2 Link */ 
    #home {
      display: none; /* 연세대학교 desktop-link disappears from small screen menu */
    }
     #mobile-menu #home2 { /* Inherits from "Styles for mobile menu icon" */
      background: none;
      border: 1px solid #fff;
      font-size: .8em;
      left: 1em;
      position: absolute;
      top: 1em;
    }

    .yonsei-logo {
      float: left;
      margin-bottom: -.5em;
      margin-left: -.5em;
      margin-right: .5em;
    }

    #logo-text {
      font-size: 1.25em;
      position: relative;
      top: .5em;
    }

    #mobile-icon {
      height: 3.5em;
      margin-top: -.75em;
      position: relative;
      right: 1em;
      top: .35em;
      width: 2.5em;
    }
  
    /* 3.2 Tablet/Mobile Dropdown Menu  */
    a.caret { /* a.caret to beat specificity of styles for general a links */
      background: #193658;
      border-bottom: 1px solid #002147;
      border-left: 1px solid #002147;
      bottom: 0;
      color: #fff;
      display: block; /* Shows caret link on small screen menu */
      position: absolute;
      right: 0;
      top: 0;
    }

    .caret:hover, 
    .caret:focus, 
    .caret:active {
      background: #3277ae;
    }
  
    .desktop-link {
      border-top: 1px solid #193658; 
      display: none; /* Javascript menu is removed when mobile menu is inactive */
      font-size: .85em;
      margin-top: 0;
    }

    .desktop-link:hover .dropdown-menu {
      display: none; /* Makes dropdown menu disappear on small screens. AFFECTS ".desktop-link:hover .caretDropdown" ! */
    }
  
    #last-desktop-link { 
      border-bottom: 1px solid #002147;
    }

    /* 3.3 Tablet/Mobile Javascript Onclick Menu */ 
    .responsive {
      padding: 0;
      position: absolute; /* Allows scrolling */
    }

    .responsive .desktop-link {
      background: #002147;
      display: block; /* Javascript menu is shown when mobile menu is active */
      width: 100%;
      position: relative;
      top: 7em; /* Vertically aligns menu items */
      z-index: 1; /* Allows mobile menu to show over slider */
    }

    .caretDropdown {
      display: block; 
      width: 100%;
      position: relative;
    }

    .desktop-link:hover .caretDropdown {
      display: block; /* Allows dropdown menu to remain on screen when other mobile menu items are hovered. AFFECTED BY ".desktop-link:hover .dropdown-menu"! */
    }
}
/* Toggle between adding and removing the "responsive" class to main menu when mobile menu icon is clicked */
function responsiveMenu() {
  var x = document.getElementById("desktopMenu");
  if (x.className === "desktop-menu") {
    x.className += " responsive";
  } else {
    x.className = "desktop-menu";
  }
}

/* Toggle between adding and removing the "caretDropdown" class to mobile menu links when caret link are clicked */
function caretDropdownOne() {
  var caretDropdown1 = document.getElementById("caretDropdownOne");
  if (caretDropdown1.className === "dropdown-menu") {
    caretDropdown1.className += " caretDropdown";
  } else {
    caretDropdown1.className = "dropdown-menu";
  }
}

function caretDropdownTwo() {
  var caretDropdown2 = document.getElementById("caretDropdownTwo");
  if (caretDropdown2.className === "dropdown-menu") {
    caretDropdown2.className += " caretDropdown";
  } else {
    caretDropdown2.className = "dropdown-menu";
  }
}

function caretDropdownThree() {
  var caretDropdown3 = document.getElementById("caretDropdownThree");
  if (caretDropdown3.className === "dropdown-menu") {
    caretDropdown3.className += " caretDropdown";
  } else {
    caretDropdown3.className = "dropdown-menu";
  }
}

function caretDropdownFour() {
  var caretDropdown4 = document.getElementById("caretDropdownFour");
  if (caretDropdown4.className === "dropdown-menu") {
    caretDropdown4.className += " caretDropdown";
  } else {
    caretDropdown4.className = "dropdown-menu";
  }
}

function caretDropdownFive() {
  var caretDropdown5 = document.getElementById("caretDropdownFive");
  if (caretDropdown5.className === "dropdown-menu") {
    caretDropdown5.className += " caretDropdown";
  } else {
    caretDropdown5.className = "dropdown-menu";
  }
}

External CSS

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External JavaScript

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