如何扩展按钮的悬停区域以便仍然触发下拉？

Question

我有这个代码（我知道的 W3 学校，正在制作模型）：

HTML:

body {
  padding: 0px;
  margin: 0;
}

#logo {
  font-family: 'Pacifico', cursive;
}

.right {
  float: right;
  right: 0;
  padding-right: 16.5px;
  padding-top: 7.5px;
}

.right .si {
  border: 0;
  background-color: inherit;
  font-size: 16px;
  margin-right: 10px;
}

.right .su {
  border: 0;
  background-color: #00b22d;
  padding-left: 15px;
  padding-right: 15px;
  padding-top: 12.5px;
  padding-bottom: 12.5px;
  font-size: 16px;
  border-radius: 10px;
}

/* Navbar container */
.navbar {
  overflow: hidden;
  background-color: white;
  font-family: Verdana;
  border-bottom: 1px solid #F0F0F0;
  padding: 10px;
}

/* Links inside the navbar */
.navbar a {
  float: left;
  font-size: 16px;
  color: black;
  text-align: center;
  padding: 14px 16px;
  text-decoration: none;
  transition-duration: 0.5s;
}

/* The dropdown container */
.dropdown {
  float: left;
  overflow: hidden;
}

/* Dropdown button */
.dropdown .dropbtn {
  font-size: 14px;
  border: none;
  outline: none;
  color: #808080;
  padding: 14px 16px;
  background-color: inherit;
  transition-duration: 0.5s;
  font-family: inherit; /* Important for vertical align on mobile phones */
  margin: 0; /* Important for vertical align on mobile phones */
  padding-top: 18px;
  margin: 0;
}

.navbar .dropdown:hover .dropbtn {
  color: black;
  transition-duration: 0.5s;
}

.navbar a:hover {
  color: #808080;
  transition-duration: 0.5s;
}

/* Dropdown content (hidden by default) */
.dropdown-content {
  display: none;
  position: absolute;
  background-color: #f9f9f9;
  width: 100%;
  margin-top: 17.5px;
  left: 0;
  box-shadow: 0px 8px 16px 0px rgba(0,0,0,0.2);
  z-index: 1;
}

/* Show the dropdown menu on hover */
.dropdown:hover .dropdown-content {
  display: block;
}

/* Create three equal columns that floats next to each other */
.column {
  float: left;
  width: 15%;
  padding: 10px;
  background-color: white;
  height: 100%;
}

.column p {
  float: none;
  color: #808080;
  padding-left: 26px;
  padding-top: 0px;
  text-decoration: none;
  display: block;
  text-align: left;
  font-size: 14px;
  font-family: Verdana;
}

/* Style links inside the columns */
.column a {
  float: none;
  color: black;
  margin: 0;
  text-decoration: none;
  display: block;
  text-align: left;
  font-size: 14px;
  font-family: Verdana;
}

.column h4 {
    font-family: Verdana;
    padding-left: 26px;
    padding-top: 0px;
    padding-bottom: 0px;
}

.column img {
    height: 150px;
}

/* Clear floats after the columns */
.row:after {
  content: "";
  display: table;
  clear: both;
}

<head>
    <link rel="stylesheet" href="main.css">
</head>
<div class="navbar">
  <a href="#" id="logo">Middle.ly</a>
  <div class="dropdown">
    <button class="dropbtn">Explore
      <i class="fa fa-caret-down"></i>
      <svg xmlns="http://www.w3.org/2000/svg" width="10" height="6" viewBox="0 0 10 6" fill="none" role="img" class="icon caret" style="padding-bottom: 2px;">
        <path d="M1 1L5.07223 5.1517L9.23083 1" stroke="black"></path>
      </svg>
    </button>
    <div class="dropdown-content">
      <div class="row">
      <div class="column">
        <a href="#">
          <img src="https://static.thenounproject.com/png/1020693-200.png">
          <h4>Page name</h4>
          <p>Page description</p>
        </a>
      </div>
      <div class="column">
        <a href="#">
          <img src="https://static.thenounproject.com/png/1020693-200.png">
          <h4>Page name</h4>
          <p>Page description</p>
        </a>
      </div>
      <div class="column">
        <a href="#">
          <img src="https://static.thenounproject.com/png/1020693-200.png">
          <h4>Page name</h4>
          <p>Page description</p>
        </a>
      </div>
      </div>
    </div>
  </div>
  <div class="dropdown">
    <button class="dropbtn">Find Work
      <i class="fa fa-caret-down"></i>
      <svg xmlns="http://www.w3.org/2000/svg" width="10" height="6" viewBox="0 0 10 6" fill="none" role="img" class="icon caret" style="padding-bottom: 2px;">
        <path d="M1 1L5.07223 5.1517L9.23083 1" stroke="black"></path>
      </svg>
    </button>
    |
    <div class="dropdown-content">
      <div class="row">
      <div class="column">
        <a href="#">
          <img src="https://static.thenounproject.com/png/1020693-200.png">
          <h4>Page name</h4>
          <p>Page description</p>
        </a>
      </div>
      <div class="column">
        <a href="#">
          <img src="https://static.thenounproject.com/png/1020693-200.png">
          <h4>Page name</h4>
          <p>Page description</p>
        </a>
      </div>
      <div class="column">
        <a href="#">
          <img src="https://static.thenounproject.com/png/1020693-200.png">
          <h4>Page name</h4>
          <p>Page description</p>
        </a>
      </div>
      </div>
    </div>
  </div>
  <div class="dropdown">
    <button class="dropbtn">Hiring Designers?
      <i class="fa fa-caret-down"></i>
      <svg xmlns="http://www.w3.org/2000/svg" width="10" height="6" viewBox="0 0 10 6" fill="none" role="img" class="icon caret" style="padding-bottom: 2px;">
        <path d="M1 1L5.07223 5.1517L9.23083 1" stroke="black"></path>
      </svg>
    </button>
    <div class="dropdown-content">
      <div class="row">
      <div class="column">
        <a href="#">
          <img src="https://static.thenounproject.com/png/1020693-200.png">
          <h4>Page name</h4>
          <p>Page description</p>
        </a>
      </div>
      <div class="column">
        <a href="#">
          <img src="https://static.thenounproject.com/png/1020693-200.png">
          <h4>Page name</h4>
          <p>Page description</p>
        </a>
      </div>
      <div class="column">
        <a href="#">
          <img src="https://static.thenounproject.com/png/1020693-200.png">
          <h4>Page name</h4>
          <p>Page description</p>
        </a>
      </div>
      </div>
    </div>
  </div>
  <div class="right">
    <button class="si">Sign in</button>
    <button class="su">Sign up</button>
  </div>
</div>

jsfiddle 在这里 https://jsfiddle.net/ProxyCode/56vsja70/1/

除了按钮所在位置和下拉菜单开始位置之间有一个小间隙之外，所有代码都运行良好，这意味着下拉菜单会在用户将鼠标悬停在它上面并使其保持原位之前消失。谢谢。

Answer 1

在您的 CSS 文件中，将 class“.dropdown-content”更改为使用：

margin-top: 0;

而不是 17.5px。

这样，您将在下拉内容和 dropbtn 之间添加 space。

Answer 2

你只需要删除一个属性 margin-top: 17.5px;来自 .dropdown-content CSS.

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