Challenge with the positioning of HTML output layout

Is there a way to center the output/result of the HTML code below both horizontally and vertically on the web page using CSS? I have tried the following code but it only centers the output horizontally. Vertical alignment is not working properly. Can someone please assist with this?

ul {
  list-style-type: none;
  margin: 0;
  padding: 0;
  overflow: hidden;
  background-color: #333333;
}

li {
  float: left;
}

li a {
  display: block;
  color: white;
  text-align: center;
  padding: 16px;
  text-decoration: none;
}

.container ul li {
  vertical-align: middle;
}

li a:hover {
  background-color: red;
}

#container {
  text-align: center;
}

ul {
  display: inline-block;
}
<div id="container">
  <ul>
    <li><a href="#home">Apple</a></li>
    <li><a href="#home">Banana</a></li>
    <li><a href="#home">Mango</a></li>
    <li><a href="#home">Grapes</a></li>
  </ul>
</div>

htmlcss

Answer №1

To solve this, Sebastian suggests using flexbox. Another simple option is to position the #container absolutely and center it using this CSS:

#container {
    text-align: center;
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
}

Answer №2

To center it, you can utilize the display:flex property. For more information on flex, check out this resource.

Remember that in order to achieve full window height, you need to stretch the body by setting html,body{height:100%}.

html {
  height: 100%;
}

body {
  height: 100%;
  margin: 0;
  display: flex;
  justify-content: center;
  align-items: center;
}

ul {
  list-style-type: none;
  margin: 0;
  padding: 0;
  overflow: hidden;
  background-color: #333333;
}

li {
  float: left;
}

li a {
  display: block;
  color: white;
  text-align: center;
  padding: 16px;
  text-decoration: none;
}

.container ul li {
  vertical-align: middle;
}

li a:hover {
  background-color: Red;
}

#container {
  text-align: center;
}

ul {
  display: inline-block;
}
<div id="container">
  <ul>
    <li><a href="#home">Apple</a></li>
    <li><a href="#home">Banana</a></li>
    <li><a href="#home">Mango</a></li>
    <li><a href="#home">Grapes</a></li>
  </ul>
</div>

Answer №3

Alternative method without using flexbox:

If you prefer not to use flexbox (such as to accommodate older browsers), you can follow @Sebastian Speitel's suggestion and utilize absolute positioning with a fixed height for your container.

ul {
  list-style-type: none;
  margin: 0;
  padding: 0;
  overflow: hidden;
  background-color: #333333;
}

li {
  float: left;
}

li a {
  display: block;
  color: white;
  text-align: center;
  padding: 16px;
  text-decoration: none;
}

.container ul li {
  vertical-align: middle;
}

li a:hover {
  background-color: Red;
}

#container {
  text-align: center;
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  margin: auto;
  height: 50px;
}

ul {
  display: inline-block;
}

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