How to play multiple animations back-to-back in CSS? - css

Question

I can not play several animations one after the other with a "fluid" effect:
#circle {
border-radius: 50%;
background: red;
animation: zoomIn 1s, pulse 0.5s ease 1s;
height: 100px;
width: 100px;
}
#keyframes zoomIn {
0% {
transform: scale(0);
}
100% {
transform: scale(1);
}
}
#keyframes pulse {
from {
transform: scale(1);
}
100% {
transform: scale(1.1);
}
}
<div id="circle"></div>
Am I doing something wrong? I want to keep the keyframes separate.

Answer 1

You may need to consider forwards on the second one to keep its last state because actually when both animations ends your element get back to the inital value of the scale transform which is scale(1) (to be more precise it's transform:none)
#circle {
border-radius: 50%;
background: red;
animation: zoomIn 1s, pulse 0.5s ease 1s forwards;
height: 100px;
width: 100px;
}
#keyframes zoomIn {
0% {
transform: scale(0);
}
100% {
transform: scale(1);
}
}
#keyframes pulse {
from {
transform: scale(1);
}
100% {
transform: scale(1.5);
}
}
<div id="circle"></div>
UPDATE
The waiting time is due to the animation-timing-function used which is ease for both and this mean that you will have an ease-out (slow at the end) and ease-in (slow at the start) which create this behavior of pausing between both animations. If you change the first one to ease-in and the last one to ease-out you won't have this issue.
#circle {
border-radius: 50%;
background: red;
animation: zoomIn 1s ease-in, pulse 0.5s ease-out 1s forwards;
height: 100px;
width: 100px;
}
#keyframes zoomIn {
0% {
transform: scale(0);
}
100% {
transform: scale(1);
}
}
#keyframes pulse {
from {
transform: scale(1);
}
100% {
transform: scale(1.5);
}
}
<div id="circle"></div>

Answer 2

Your pulse animation ends at scale 1.1, and then your circle snaps back to scale 1. Maybe the pulse keyframes should be as follows:
#keyframes pulse {
from {
transform: scale(1);
}
50% {
transform: scale(1.1);
}
100% {
transform: scale(1);
}
}
In the snippet below you see no snapping, but maybe this isn't the effect you were looking for?
#circle {
border-radius: 50%;
background: red;
animation: zoomIn 1s, pulse 0.5s ease 1s;
height: 100px;
width: 100px;
}
#keyframes zoomIn {
0% {
transform: scale(0);
}
100% {
transform: scale(1);
}
}
#keyframes pulse {
from {
transform: scale(1);
}
50% {
transform: scale(1.1);
}
100% {
transform: scale(1);
}
}
<div id="circle"></div>

Answer 3

You need a short pulse at the end when your circle is scaled to 1, this is your fluid effect I presume.
Rather than having to different animations, why don't we tweak the keyframes in the zoomIn animation a little bit.
HTML:
<div id="circle"></div>
CSS:
#circle {
border-radius: 50%;
background: red;
animation: zoomIn 0.4s ease-out;
height: 100px;
width: 100px;
}
#keyframes zoomIn {
0% {
transform: scale(0);
}
60% {
transform: scale(1);
}
80% {
transform: scale(1.1);
}
100% {
transform: scale(1);
}
}
Hope this helps.

Answer 4

the only animation is 'Transform', it is best to use a 'timing function' customization, I recommend utilities 'Cubic-bezier' go to this website http://cubic-bezier.com and practice. read before something about bezier curve.
#circle {
border-radius: 50%;
background: red;
animation: zoomIn 1s cubic-bezier(.4,.17,.49,1.54);
height: 100px;
width: 100px;
}
#keyframes zoomIn {
0% {
transform: scale(0);
}
100% {
transform: scale(1);
}
}
<div id="circle"></div>
UPDATE
or this other 'timing-function'
#circle {
border-radius: 50%;
background: red;
animation: zoomIn 1.5s cubic-bezier(.56,1,.92,.7);
height: 100px;
width: 100px;
animation-fill-mode: forwards; /* */
}
#keyframes zoomIn {
0% {
transform: scale(0);
}
100% {
transform: scale(1.1);
}
}
<div id="circle"></div>