Css transform translate

The translate3d() function in CSS is used to translate, or move, an element in three-dimensional space. The result is a datatype.The translate3d() function results in the transformation, based on the three-dimensional vector [tx, ty, tz]. The coordinates value determine the direction in which the element will move.Possible valuesThe function translate3d() takes the following values as parameter(s).tx: Can be a or value that represents the abscissa (horizontal, x-component) of the translating vector [tx, ty, tz].ty: Can be a or value that represents the ordinate (vertical, y-component) of the translating vector [tx, ty, tz].tz: Can only be a value that represents z-component of the translating vector [tx, ty, tz]. It can not have a value and if given the property containing the transform will be invalid.Syntaxtransform: translate3d(tx, ty, tz);CSS translate3d() - Length ValueFollowing is an example of translate3d() function with the various ways in which length values can be passed to it, i.e., positive and negative values: #container { border: 5px solid black; margin: 25px; } #sample { height: 110px; width: 110px; border: 2px solid black; } .translate-3d-length { transform: translate3d(20px, 30px, 20px); background-color: yellowgreen; } .translate-3d-negative { transform: translate(-20px, -10px, -30px); background-color: tomato; } no translate() applied translate3d(20px, 30px, 20px) translate3d(-20px, -10px, -30px) CSS translate3d() - Combining x-axis and z-axis valuesFollowing is an example of translate3d() function with length values passed to x-axis and z-axis: #container { border: 5px solid black; margin: 25px; } #sample { height: 110px; width: 110px; border: 2px solid black; } .translate-3d-length { transform: translate3d(20px, 0, 20px); background-color: yellowgreen; } no translate3d() translate3d(20px, 0, 20px) no translate3d() CSS translate3d() - Combining y-axis and z-axis valuesFollowing is an example of translate3d() function with length values passed to y-axis and z-axis, along with perspective() value: #container { border: 5px solid black; margin: 25px; } #sample { height: 110px; width: 110px; border: 2px solid black; } .translate-3d-length { transform: perspective(580px) translate3d(0, 30px, 50px); background-color: yellowgreen; } no translate3d() translate3d(0, 30px, 50px) no translate3d()

CSS in 30 days (which is free) and you’ll learn everything you need to know.1. Horizontal MovementThe first movement we'll demonstrate is "horizontal"; we'll animate the object to move to the right and to the left.Moving to the RightTo move an object from its initial position we use: transform: translate(x,y);, where the x value should be positive and the y value should be 0 to move the object to the right.HTMLOpen your favorite Text Editor and enter the following html markup, then save the file.1 id="axis" class="one">2 class="object van move-right" src="images/van-to-right.png"/>3We've assigned three classes to the image:object: We use this class to set general rules for all the objects we will use.van: We're going to use different objects to demonstrate each animation, so we'll apply different classes to them as well. This way we can position each object separately.move-right: We'll move the object using this class, each movement will have different class.CSSFirstly, we'll position the object (our van image) to the center of the grid.1.object {2 position: absolute;3}4.van {5 top: 45%;6 left: 44%;7}In this example we are going to move the object 350px to the right. The syntax is transform: translate(350px,0); and the object will move when the Axis is hovered over. We therefore declare it with #axis:hover .move-right.1#axis:hover .move-right{2 transform: translate(350px,0);3 -webkit-transform: translate(350px,0); /** Chrome & Safari **/4 -o-transform: translate(350px,0); /** Opera **/5 -moz-transform: translate(350px,0); /** Firefox **/6}The CSS transform property will only move the object from one point to another, it will not animate between the two states.

--> CSS 如何居中一个 position:fixed 元素在本文中，我们将介绍如何使用 CSS 居中一个 position:fixed 元素。position:fixed 是 CSS 的一种定位属性，可以使元素固定在屏幕的某个位置。但是，很多开发者经常困惑的是如何将一个 position:fixed 元素居中。在接下来的内容中，我们将通过示例和代码说明几种常用的方法来实现这个目标。阅读更多：CSS 教程1. 居中一个固定宽度和高度的 position:fixed 元素如果我们要居中一个固定宽度和高度的 position:fixed 元素，可以使用以下的 CSS 代码：.element { position: fixed; top: 50%; left: 50%; transform: translate(-50%, -50%); width: 200px; /* 自定义宽度 */ height: 100px; /* 自定义高度 */ background-color: #eee; /* 自定义背景色 */}在这个例子中，我们使用 top: 50%; 和 left: 50%; 把元素的左上角放在屏幕的中间位置。然后，通过 transform: translate(-50%, -50%); 把元素向左上方移动自身宽度和高度的一半，从而实现元素居中。2. 居中一个自动适应宽度和高度的 position:fixed 元素如果要居中一个自动适应宽度和高度的 position:fixed 元素，可以使用以下的 CSS 代码：.element { position: fixed; top: 50%; left: 50%; transform: translate(-50%, -50%); max-width: 80%; /* 自定义最大宽度 */ max-height: 80%; /* 自定义最大高度 */ background-color: #eee; /* 自定义背景色 */}在这个例子中，我们同样使用 top: 50%; 和 left: 50%; 把元素的左上角放在屏幕的中间位置。然后，通过 transform: translate(-50%, -50%); 把元素向左上方移动自身宽度和高度的一半。不同的是，我们将宽度和高度设置为最大宽度和最大高度的百分比。这样，当元素的内容超出最大尺寸时，会自动缩放以适应屏幕，仍然保持居中。3. 居中一个带有动画效果的 position:fixed 元素如果要居中一个带有动画效果的 position:fixed 元素，并且在窗口大小改变时保持居中，可以使用以下 CSS 和 JavaScript 代码：html>html> .element { position: fixed; top: 50%; left: 50%; transform: translate(-50%, -50%); animation: centerAnimation 0.5s; width: 200px; /* 自定义宽度 */ height: 100px; /* 自定义高度 */ background-color: #eee; /* 自定义背景色 */ } @keyframes centerAnimation { from { opacity: 0; transform: translate(-50%, -50%) scale(0.9); } to { opacity: 1; transform: translate(-50%, -50%) scale(1); } } function centerElement() { var element = document.querySelector('.element'); element.style.top = '50%'; element.style.left = '50%'; element.style.transform = 'translate(-50%, -50%)'; } window.addEventListener('resize', centerElement); 在这个例子中，我们使用了 CSS 动画来给元素添加一个居中效果的动画。通过 @keyframes 定义了一个名为 centerAnimation 的动画，它从不透明度为 0 和缩放 0.9 的状态开始，渐变到完全显示和原始尺寸的状态。同时，我们使用 JavaScript 监听窗口大小的改变，并在改变时重新居中元素。总结通过本文，我们学习了在 CSS 中如何居中一个 position:fixed 元素。我们介绍了几种常用的方法，包括居中固定宽度和高度的元素、居中自动适应宽度和高度的元素以及居中带有动画效果的元素。这些方法可以帮助我们在网页布局中灵活运用 position:fixed，并实现元素的居中效果。希望本文对你有所帮助！

The x coordinate value we enter a positive value (350px) and for the y coordinates we enter a negative value (-350px). The syntax will therefore look like this: transform: translate(350px,-350px);1#axis:hover .move-ne {2 transform: translate(350px,-350px);3 -webkit-transform: translate(350px,-350px);4 -o-transform: translate(350px,-350px); 5 -moz-transform: translate(350px,-350px);6 7}Feel free to experiment and direct the movement of objects along the other diagonal axes.View Demo4. RotationRotational movement in CSS3 is regulated using a radial coordinate from 0° to 360°. To rotate an object simply apply the following css property: transform: rotate(ndeg); where n is the degree of rotation.360° ClockwiseTo rotate an object clockwise, we enter a positive value for the rotate(ndeg) property.HTMLFor this example we'll use a pencil to demonstrate the movement.1 id="axis" class="six">2 class="object pencil rotate360cw" src="images/pencil.png"/>3CSSAnd we'll rotate the object 360 degrees clockwise.1#axis:hover .rotate360cw {2 transform: rotate(360deg);3 -webkit-transform: rotate(360deg);4 -o-transform: rotate(360deg); 5 -moz-transform: rotate(360deg);6}View Demo360° Counter ClockwiseTo perform counter-clockwise rotation we enter (you guessed it) a negative value.HTMLWe're still using the pencil as our object, but we'll change its class to .rotate360ccw. 1 id="axis" class="seven">2 class="object pencil rotate360ccw" src="images/pencil.png"/>3CSS1#axis:hover .rotate360ccw {2 transform: rotate(-360deg);3 -webkit-transform: rotate(-360deg);4 -o-transform: rotate(-360deg); 5 -moz-transform: rotate(-360deg);6}View Demo5. ScalingScale is an interesting feature in CSS3. By using the scale(n) or scale(x,y) property we can enlarge or shrink an object within our HTML. The object will be scaled according to n/x,y value, where the x-axis is for the width and the y-axis represents the height. For example, if we enter scale(2), the object will be scaled twice (200% larger) along both axes, from its