how to make something centered in css code example

Example 1: center a div in css

.container {
  display: flex;
  justify-content: center;
  align-items: center;
}

Example 2: css align center

//HTML

	Hello World


//CSS
.parent {
  display: flex;
  justify-content: center;
  align-items: center;
}

Example 3: css center everything

/* to make "align-items: center" work: use "min-height: 100vh;"
100vh = 100% Viewport Height */
body {
	display: flex;
	min-height: 100vh;
	flex-direction: column;
	justify-content: center;
	align-items: center;
}

Example 4: center with css

.parent {
  position: relative;
}
.child {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}