An example Analysis of rotateX rotation Direction in css3

This article mainly introduces "case analysis of rotateX rotation direction in css3". In daily operation, I believe that many people have doubts about the case analysis of rotateX rotation direction in css3. The editor consulted all kinds of data and sorted out simple and easy-to-use operation methods. I hope it will be helpful to answer the doubts of "case analysis of rotateX rotation direction in css3". Next, please follow the editor to study!

The rotation direction of rotateX in css3: 1. When the rotation angle of rotateX () method is positive, the rotation direction of the element is counterclockwise facing the positive direction of x-axis; 2. When the rotation angle of rotateX () method is negative, the rotation direction of the element is clockwise facing the positive direction of x-axis.

The operating environment of this tutorial: windows10 system, CSS3&&HTML5 version, Dell G3 computer.

What is the rotation direction of rotateX in css3

In the process of making a web page, we often rotate the elements to form a certain three-dimensional feeling, or make animation effects with keyframes (@ keyframe) to make the page more beautiful.

In css3, we can use transform:rotate (); to rotate the element.

By default, when the angle is positive, the element rotates clockwise about the z axis.

Transform: rotate (45deg); / / rotate 45 °clockwise about the z axis

For beginners, it is easier to determine the direction of an element rotating on a plane, but it is more difficult in three-dimensional space.

Do you still remember that the ampere rule was used to judge the direction of the magnetic field in the physics textbook? similarly, friends with weak spatial imagination can use the left hand to judge the direction of rotation of the picture.

How to use it:

Gently hold the left hand, the thumb points to the positive direction of the axis of rotation, and the direction of the four fingers is the direction of rotation.

Example:

Transform: rotateX (45deg); / / rotate 45 °clockwise on the x axis

Predict the direction of rotation of the picture as shown by the arrow:

Actual rotation:

When using, it is necessary to note that the y-axis is downward.

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