Use CSS to achieve overall centering: Set align-items: center for vertical centering. Set justify-content: center for horizontal centering. Setting the align-items and justify-content properties together will center the entire item.
How to use CSS to set the overall centering
In web design, sometimes you need to center align all content. This This can be achieved by using the CSS align-items and justify-content properties.
align-items property
align-items property is used to set the vertical alignment of items (flex items) in the container. If align-items is set to center, the items will be vertically centered:
.container {
display: flex;
align-items: center;
}justify-content property
justify-content property is used to set the items in the container (flex item) horizontal alignment. If justify-content is set to center, the items will be centered horizontally:
.container {
display: flex;
justify-content: center;
}Center the whole
To center the whole, you need to set align-items and justify at the same time -content attribute:
.container {
display: flex;
align-items: center;
justify-content: center;
}Example
The following example demonstrates how to use CSS to center all content in a web page:
<!DOCTYPE html>
<html>
<head>
<style>
body {
display: flex;
align-items: center;
justify-content: center;
height: 100vh;
}
</style>
</head>
<body>
<h1>Hello, world!</h1>
</body>
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