下拉菜单内容与其菜单项重叠

Question

在左右显示导航栏时，下拉总是最后显示，它应该在其他链接和下拉内容重叠下拉按钮之间。

下拉内容与下拉内容重叠。如何纠正？

body {
  color: #959595;
}

.navbar {
  width: 100%;
}

.nav-left {
  float: right;
  width: 25%;
  position: absolute;
  padding-top: 14px;
}

.navbar-Logo {
  float: right;
  color: #dd845a;
  text-decoration: none;
}

.navbar-Logo a {
  float: right;
  color: #dd845a;
  text-decoration: none;
}

.navbar-Logo:hover,
.navbar-Logo:focus {
  color: sienna;
  background-color: transparent;
}

.nav-right {
  width: 75%;
  float: right;
  background-color: #fff;
}

.nav-right a {
  display: inline;
  color: black;
  /*text-align: center;*/
  padding-left: 14px;
  text-decoration: none;
}

.rightbar_items {
  float: left;
  color: #dd845a;
  text-decoration: none;
}

#rb {
  float: right;
  padding: 14px 16px;
}

.dropdown {
  display: inline-block;
}

.dropdown .dropbtn {
  border: none;
  outline: none;
  color: black;
  background-color: inherit;
  /*font-family: inherit;*/
  margin: 0;
  float: left;
}

.nav-right a:hover {
  background-color: #E7E7E7;
}

.dropdown:hover .dropdown-content {
  display: block;
}

.dropdown-content {
  display: none;
  position: absolute;
  min-width: 160px;
  box-shadow: 0px 8px 16px 0px rgba(0, 0, 0, 0.2);
  z-index: 1;
}

.dropdown-content a {
  float: none;
  color: black;
  padding: 12px 16px;
  text-decoration: none;
  display: block;
  background-color: white;
  text-align: left;
}

.dropdown-content {
  display: none;
  position: absolute;
  background-color: black;
}

.dropdown-content a:hover {
  background-color: #ddd;
}

<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font-awesome.min.css">

<!-- Navigation -->
<div class="navbar">
  <div class="nav-left">
    <a class="navbar-Logo" href="#">LOGO</a>
  </div>
  <div class="nav-right">
    <div id="rb">
      <a class="rightbar_items" href="#">Home</a>
      <a class="rightbar_items" href="#">Products</a>
      <div class="dropdown">
        <button class="dropbtn">Services 
                <i class="fa fa-caret-down"></i></button>
        <div class="dropdown-content">
          <a href="#">abc</a>
          <a href="#">def</a>
          <a href="#">ghi</a>
        </div>
      </div>
      <a class="rightbar_items" href="#">My Account</a>
      <a class="rightbar_items" href="#">My Cart</a>
    </div>
  </div>
</div>

Answer 1

将 top: 40px; 添加到 .dropdown-content 并取出除 .nav-right 中的浮点数之外的所有浮点数。

body {
  color: #959595;
}

.navbar {
  width: 100%;
}

.nav-left {
  width: 25%;
  position: absolute;
  padding-top: 14px;
}

.navbar-Logo {
  color: #dd845a;
  text-decoration: none;
}

.navbar-Logo a {
  color: #dd845a;
  text-decoration: none;
}

.navbar-Logo:hover,
.navbar-Logo:focus {
  color: sienna;
  background-color: transparent;
}

.nav-right {
  width: 75%;
  float: right;
  background-color: #fff;
}

.nav-right a {
  display: inline;
  color: black;
  /*text-align: center;*/
  padding-left: 14px;
  text-decoration: none;
}

.rightbar_items {
  color: #dd845a;
  text-decoration: none;
}

#rb {
  padding: 14px 16px;
}

.dropdown {
  display: inline-block;
}

.dropdown .dropbtn {
  border: none;
  outline: none;
  color: black;
  background-color: inherit;
  /*font-family: inherit;*/
  margin: 0;
}

.nav-right a:hover {
  background-color: #E7E7E7;
}

.dropdown:hover .dropdown-content {
  display: block;
}

.dropdown-content {
  display: none;
  position: absolute;
  min-width: 80px;
  /* added top: 40px */
  top: 40px;
  box-shadow: 0px 8px 16px 0px rgba(0, 0, 0, 0.2);
  z-index: 1;
}

.dropdown-content a {
  float: none;
  color: black;
  padding: 12px 16px;
  text-decoration: none;
  display: block;
  background-color: white;
  text-align: left;
}

.dropdown-content {
  display: none;
  position: absolute;
  background-color: black;
}

.dropdown-content a:hover {
  background-color: #ddd;
}

<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font-awesome.min.css">

<!-- Navigation -->
<div class="navbar">
  <div class="nav-left">
    <a class="navbar-Logo" href="#">LOGO</a>
  </div>
  <div class="nav-right">
    <div id="rb">
      <a class="rightbar_items" href="#">Home</a>
      <a class="rightbar_items" href="#">Products</a>
      <div class="dropdown">
        <button class="dropbtn">Services 
                <i class="fa fa-caret-down"></i>
        </button>
        <div class="dropdown-content">
          <a href="#">abc</a>
          <a href="#">def</a>
          <a href="#">ghi</a>
        </div>
      </div>
      <a class="rightbar_items" href="#">My Account</a>
      <a class="rightbar_items" href="#">My Cart</a>
    </div>
  </div>
</div>