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CSS Animation

Posted on 2016-08-30
6
65 Views
Last Modified: 2016-09-12
Hi, Experts

I am trying to create this simple CSS animation. I would like the CTA image to move toward bottom of page and stay there no matter what browser size is.... I adjust the number without success, thanks for advises. I have created a live demo below

LIVE Demo
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Question by:mingchih
  • 4
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6 Comments
 
LVL 42

Accepted Solution

by:
David S. earned 500 total points
ID: 41779230
I recommend positioning and sizing the image to work for the final frame and then setting the first frame of the animation to appear larger and near the middle of the screen, using the viewport height unit ("vh"): https://jsfiddle.net/tzsydb5v/4/
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Author Closing Comment

by:mingchih
ID: 41780357
Hi, David:

Thanks a lot. Your answer is exactly what I am looking for. I learn something new today :)
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Author Comment

by:mingchih
ID: 41780844
I got a question tho, if I would like to delay start img for few seconds, how do I position the img to be in the center ? thanks
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Author Comment

by:mingchih
ID: 41780860
I changed to

.hero-text-box{
    position: fixed;
    width: auto;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
    overflow: visible;
}     

.hero-text-box img {
    animation: example 2s 5s 0.8 forwards;
    max-width: 90vw;
    display: block;
    margin: 0 auto;
}

@keyframes example {
  0% {
    transform: scale(1) translateY(0);
  }
  100% {
      transform: scale(0.5) translateY(79vh);
  }
}

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Seems working...
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LVL 42

Expert Comment

by:David S.
ID: 41780914
You're welcome.

Instead of setting a delay (with animation-delay), you could also add another keyframe:
.hero-text-box img {
    animation: example 7s 0.8 forwards;
    max-width: 90vw;
    display: block;
    margin: 0 auto;
}

@keyframes example {
  0% {
    transform: scale(1) translateY(0);
  }
  28.6% {
    transform: scale(1) translateY(0);
  }
  100% {
      transform: scale(0.5) translateY(79vh);
  }
}

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Author Comment

by:mingchih
ID: 41795270
Hello, I got another question relate to this project and post here https://www.experts-exchange.com/questions/28969353/CSS-for-Safari-only.html
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