Question

我希望图片覆盖页面上的所有内容，但是<header>但是，底部总是有一条白色的空间。我使用margin-right和margin-left来覆盖边，但margin-bottom没有填充底部的空白区域。

＆＃13;

header {
  margin-bottom: 20px;
}
h1 {
  text-align: center;
}
nav {
  text-align: center;
}
ul {
  list-style-type: none;
}
li {
  display: inline;
  padding-right: 5px;
  padding-left: 5px;
}
li a {
  color: black;
  text-decoration: none;
}
#wrapper {
  background-image: url(rome.jpg);
  -webkit-background-size: 100% 600px;
  background-repeat: no-repeat;
  height: 600px;
  margin-right: -8px;
  margin-left: -8px;
}

＆＃13;

<header>
  <h1>Colin Bruin</h1>
  <nav>
    <ul>
      <li><a href="home.html">Home</a>
      </li>|
      <li><a href="code.html">Code</a>
      </li>|
      <li><a href="webpages.html">Webpages</a>
      </li>|
      <li><a href="articles.html">Articles</a>
      </li>|
      <li><a href="resume.html">Resume</a>
      </li>
    </ul>
  </nav>
</header>
<div id="wrapper">

  <main>

  </main>
</div>

＆＃13;

Answer 1

body默认情况下有一些margin，这就是为什么你会看到底部空间以及左/右空间（你使用负边距来 hack fix < / em> it）。

要在margin:0中解决此设置body，您不需要左/右的否定margin s

＆＃13;
＆＃13;
body { margin: 0 } header { margin-bottom: 20px; } h1 { text-align: center; } nav { text-align: center; } ul { list-style-type: none; } li { display: inline; padding-right: 5px; padding-left: 5px; } li a { color: black; text-decoration: none; } #wrapper { background-image: url(//lorempixel.com/1000/1000); -webkit-background-size: 100% 600px; background-repeat: no-repeat; height: 600px; }
＆＃13;
<header> <h1>Colin Bruin</h1> <nav> <ul> <li><a href="home.html">Home</a> </li>| <li><a href="code.html">Code</a> </li>| <li><a href="webpages.html">Webpages</a> </li>| <li><a href="articles.html">Articles</a> </li>| <li><a href="resume.html">Resume</a> </li> </ul> </nav> </header> <div id="wrapper"> <main> </main> </div>
＆＃13;
＆＃13;
＆＃13;

Answer 2

喜欢这个吗？

height:100%;
 margin:0;
 padding:0;

}
header {
  margin-bottom: 20px;
}
h1 {
  text-align: center;
}
nav {
  text-align: center;
}
ul {
  list-style-type: none;
}
li {
  display: inline;
  padding-right: 5px;
  padding-left: 5px;
}
li a {
  color: black;
  text-decoration: none;
}
#wrapper {
  background-image: url(https://placekitten.com/g/1000/1000);
  -webkit-background-size: 100% 600px;
  background-repeat: no-repeat;
  height: 600px;
}
</style> </head>

<!DOCTYPE html>
<html lang="en">

<head>
  <title>Colin's Page</title>
  <meta charset="utf-8">

  <body>
    <header>
      <h1>Colin Bruin</h1>
      <nav>
        <ul>
          <li><a href="home.html">Home</a>
          </li>|
          <li><a href="code.html">Code</a>
          </li>|
          <li><a href="webpages.html">Webpages</a>
          </li>|
          <li><a href="articles.html">Articles</a>
          </li>|
          <li><a href="resume.html">Resume</a>
          </li>
        </ul>
      </nav>
    </header>
    <div id="wrapper">

      <main>

      </main>
    </div>
  </body>

</html>

如何在页脚上设置背景img

2 个答案: