Implementation method: 1. Use the "element {animation: name time}" statement to bind animation to the element and set the time required for the animation; 2. Use "@keyframes name {100%{height: gradient" Height value;}}" statement, set the animation action of height change to achieve the gradient effect.
The operating environment of this tutorial: Windows 10 system, CSS3&&HTML5 version, Dell G3 computer.
It can be achieved by using animation effect.
The animation attribute can set the animation effect of the element:
animation-name specifies the keyframe name that needs to be bound to the selector. .
animation-duration Specifies the time it takes to complete the animation, in seconds or milliseconds.
animation-timing-function specifies the speed curve of animation.
animation-delay Specifies the delay before the animation starts.
animation-iteration-count specifies the number of times the animation should play.
animation-direction specifies whether the animation should be played in reverse in turn.
The syntax is:
animation: name duration timing-function delay iteration-count direction;
Height gradients can use the transform attribute
The transform attribute applies a 2D or 3D transformation to an element. This property allows us to rotate, scale, move or tilt the element.
The example is as follows:
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <meta http-equiv="X-UA-Compatible" content="ie=edge"> <title>Document</title> <style> div{ width:100px; height:100px; background-color:pink; animation:fadenum 5s; } @keyframes fadenum{ 100%{height:300px;} } </style> </head> <body> <div></div> </body> </html>
Output result:
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