translateY()

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since September 2015.

The translateY() CSS function repositions an element vertically on the 2D plane. Its result is a <transform-function> data type.

Note: translateY(ty) is equivalent to translate(0, ty) or translate3d(0, ty, 0).

css

/* <length-percentage> values */
transform: translateY(200px);
transform: translateY(50%);

<length-percentage>: The value is a <length> or <percentage> representing the ordinate (vertical, y-coordinate) of the translating vector [0, ty]. In Cartesian coordinate system it represents shift along y-axis. A percentage value refers to the height of the reference box defined by the transform-box property.

Cartesian coordinates on ℝ^2	Homogeneous coordinates on ℝℙ^2	Cartesian coordinates on ℝ^3	Homogeneous coordinates on ℝℙ^3
A translation is not a linear transformation in ℝ^2 and can't be represented using a Cartesian-coordinate matrix.	$\left( \begin{array}{ccc} 1 & 0 & 0 \\ 0 & 1 & t \\ 0 & 0 & 1 \end{array} \right)$	$\left( \begin{array}{ccc} 1 & 0 & 0 \\ 0 & 1 & t \\ 0 & 0 & 1 \end{array} \right)$	$\left( \begin{array}{cccc} 1 & 0 & 0 & 0 \\ 0 & 1 & 0 & t \\ 0 & 0 & 1 & 0 \\ 0 & 0 & 0 & 1 \end{array} \right)$
	`[1 0 0 1 0 t]`

translateY(<length-percentage>)

html

<div>Static</div>
<div class="moved">Moved</div>
<div>Static</div>

css

div {
  width: 60px;
  height: 60px;
  background-color: skyblue;
}

.moved {
  transform: translateY(10px);
  background-color: pink;
}

Specification
CSS Transforms Module Level 1 # funcdef-transform-translatey

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