导航栏下的空白（溢出）

Question

试图删除我的导航栏下的空白，当您检查元素并禁用 overflow: hidden 时，空白消失了吗？

https://i.gyazo.com/b2f412e61b09f24348a02fd5b7d4bdf3.png > 溢出 https://i.gyazo.com/cbd9766f50c97a732064133a8a77e25a.png > 没有

当然它也删除了背景颜色所以我想找到另一个解决这个问题的方法？

    body {
    font-family: 'Oxygen', sans-serif;
    width: 100%;
    height: 100%;
    margin: 0;
    background-color: #EEEEE7;
}

h1 {
    font-family: 'Oxygen', sans-serif;
}

button {
    color: #FE5B3C;
    background-color: #2B211F;
    border: none;
    padding: 10px;
    text-align: center;
    font-size: 24px;
}

/* The dividers */

#wrapper {
    width: 100%;
    height: 100%;
    padding: 0;
    margin: 0;
}

.container {
    width: 100%;
    height: 100%;
    margin: 0;
    background: url('images/studying.jpg');
    background-size: cover;
    background-position: 0;
    margin-top: 0;
    clear: both;
}

.container h1, p {
    color: #FE5B3C;
    text-align: center;
    padding: .5em;
}

/* Remove margins and padding from the list, and add a black background color */
ul.topnav {
    list-style-type: none;
    margin: 0;
    margin-bottom: 0;
    padding: 0;
    overflow: hidden;
    white-space: no wrap;
    background-color: #2B211F;
    width: 100%;
}

.img-topnav {
    display: block;
    margin: 0;
    padding: 1em;
    height: 32px;
    width: auto;
    max-width: 100%;
    float: left;
}

/* Float the list items side by side */
ul.topnav li {float: left;}

/* Style the links inside the list items */
ul.topnav li a {
    display: inline-block;
    color: #FE5B3C;
    text-align: center;
    padding: 22px 16px;
    text-decoration: none;
    transition: 0.3s;
    font-size: 17px;
    margin: 0;
}

/* Change background color of links on hover */
ul.topnav li a:hover {background-color: #EEEEE7;}

/* Hide the list item that contains the link that should open and close the topnav on small screens */
ul.topnav li.icon {display: none;}

/* When the screen is less than 680 pixels wide, hide all list items, except for the first one ("Home"). Show the list item that contains the link to open and close the topnav (li.icon) */
@media screen and (max-width:680px) {
  ul.topnav li:not(:first-child) {display: none;}
  ul.topnav li.icon {
    float: right;
    display: inline-block;
  }
}

/* The "responsive" class is added to the topnav with JavaScript when the user clicks on the icon. This class makes the topnav look good on small screens */
@media screen and (max-width:680px) {
  ul.topnav.responsive {position: relative;}
  ul.topnav.responsive li.icon {
    position: absolute;
    right: 0;
    top: 0;
  }
  ul.topnav.responsive li {
    float: none;
    display: inline;
  }
  ul.topnav.responsive li a {
    display: block;
    text-align: left;
  }
}

和html

<!DOCTYPE html>
<html lang="en">
<head>
    <!-- Basic Page Needs -->
    <meta charset="utf-8">
    <meta name="description" content="">
    <meta name="author" content="">
    <title>Your Landing Page!</title>

    <!-- Mobile Specific Metas -->
    <meta name="viewport" content="width=device-width, initial-scale=1">

    <!-- FONT -->
    <link href='https://fonts.googleapis.com/css?family=Oxygen:400,300,700' rel='stylesheet' type='text/css'>

    <!-- CSS -->
    <link rel="stylesheet" href="style.css">

    <!-- Scripts -->
    <script>
        function myFunction() {
            document.getElementsByClassName("topnav")[0].classList.toggle("responsive");
        }
    </script>

    <!-- Favicon / How to Edit:    Make sure the type="" is the right type. Then change the href="" to the path of the image/.ico file you'd like to use. -->
    <link rel="icon" type="image/png" href="images/icons/mortarboard.png">

</head>
<body>
    <div id="wrapper">
        <ul class="topnav">
            <li><img src="images/icons/medal.png" class="img-topnav" alt="Home"><a href="#home">Personal Tutors</a></li>
            <li><a href="#news">News</a></li>
            <li><a href="#contact">Contact</a></li>
            <li><a href="#about">About</a></li>
            <li class="icon"><a href="javascript:void(0);" onclick="myFunction()">&#9776;</a></li>
        </ul>
        <div class="container">
            <h1>Welcome to Personal Tutors!</h1>
            <button>Find a Tutor!</button>
            <p> This is a test to see if the font is working. </p>
        <div>
    </div>

</body>
</html>

Answer 1

问题与溢出无关属性。空白实际上是 h1 标签的上边距。

一个简单快捷的解决方法是用填充替换 h1 边距顶部。

尝试将此添加到您的代码中：

.container h1 { 
  margin-top: 0;
  padding-top: 1em;
}

导航栏下的空白（溢出）

whitespace under nav bar (overflow)

html

css

whitespace

overflow