The right way to create and animate SVG spinners and loaders

Why SVG?

SVGs are good for this train, as a result of they’re scalable, and we are able to simply manipulate every kind of SVG properties to make them look and behave precisely how we like.

An SVG (scalable vector graphic) is a picture format used for creating graphics similar to logos, illustrations, and animations.  Not like raster (pixel-based) pictures, SVGs are resolution-independent, that means they are often resized with out dropping high quality.

To create a easy SVG, we begin by defining the canvas between <svg> tags, after which specifying the width and peak. Contained in the SVG we are able to outline varied shapes, similar to rectangles, circles, traces, eclipses, polygons, and paths.

For instance, right here is an easy SVG instance utilizing a <circle> aspect.

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<svg width="100" peak="100" viewBox="0 0 100 100" xmlns="https://www.w3.org/2000/svg">

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  <circle cx="50" cy="50" r="40" fill="blue" />

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</svg>

Let’s see if we are able to perceive the properties:

• In between the svg tags, we’ve peak and width attributes, which outline the peak and width of the SVG container.
• viewBox="0 0 100 100": This attribute units the coordinates for drawing. The drawing begins on the high left nook ( 0 0 ) and extends to (100, 100).
•  cx ="50" and cy ="50" outline the place of the circle.
• r=50 is the radius of the circle whereas fill= "pink" fills the circle with a pink shade

Rectangle

To attract a rectangle, we use the <rect> aspect with the next attributes:

• x: The horizontal place on the high left nook 
• y: The vertical place on the high left nook.
• width: The width of the rectangle 
• peak: The peak of the rectangle

If x and y will not be outlined, they each default to 0. Right here is an instance of a pink rectangle with a width and peak of 100. 

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<svg width="100" peak="100" viewBox="0 0 100 100">

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  <rect width="100" peak="100" fill="pink" />

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</svg>

To create a rectangle with rounded corners, simply add the rx and ry attributes.

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<svg width="100" peak="100" viewBox="0 0 100 100">

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  <rect width="100" peak="100" rx="10" ry="10" fill="pink" />

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</svg>

rx is the horizontal radius of the rounded corners and ry is the vertical radius of the rounded corners. 

Stroke and stroke-width

Along with the fill property, the <circle>  aspect additionally accepts extra properties similar to stroke and stroke-width.

The stroke property determines the colour of the circle’s define, whereas the stroke- width controls its thickness.

For instance, the next SVG will create a clear circle with a pink define. Setting fill="none" makes the circle clear and stroke-width="10" makes the define thick.

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<svg width="100" peak="100" viewBox="0 0 100 100">

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  <circle

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    cx="50"

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    cy="50"

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    r="40"

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    fill="none"

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    stroke="pink"

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    stroke-width="10"

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  />

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</svg>

Stroke-dasharray and stroke-dashoffset

The stroke-dasharray and stroke-dashoffset are the 2 key properties that permit us to create results like dashed traces, animated outlines, and loading spinners.

• The stroke-dasharray property defines the sample of dashes and gaps utilized to the circle’s define. It’s outlined by space-separated values. 
• The stroke-dashoffset property controls the place the sprint begins alongside the stroke. It does this by shifting it alongside the stroke’s path.

Let’s take a look at an instance:

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<svg width="120" peak="120" viewBox="0 0 100 100">

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<circle cx="50" cy="50" r="40" 

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  fill="none" 

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  stroke="#ff69b4" 

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  stroke-width="5"

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  stroke-dasharray="150 100"

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  stroke-dashoffset="0" />

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</svg>

In  the SVG above:

• stroke-dasharray = "150 100" will create a stroke sample the place the stroke is seen for 150 items adopted by a spot of 100 items.  
• stroke-dashoffset ="30"  will shift all the sample ahead by 30 items alongside the stroke’s path.

The ensuing form shall be an arc:

Animating SVGs

Now that we all know how one can create static  SVGs, let’s deliver them to life with animations. We are going to use CSS properties like remodel,  transition, and keyframes for easy and interesting results.

Circle ripple impact

A circle ripple impact spinner is a visually interesting loading indicator usually used to point loading or processing. This impact consists of circles that regularly fade out resembling water ripples.

Let’s begin by defining the SVG construction which can appear like this:

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<svg class="ripple" viewBox="0 0 100 100">

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  <circle cx="50" cy="50" r="45" fill="none" stroke="#3498db" stroke-width="2" />

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  <circle cx="50" cy="50" r="45" fill="none" stroke="#3498db" stroke-width="2" />

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  <circle cx="50" cy="50" r="45" fill="none" stroke="#3498db" stroke-width="2" />

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</svg>

All of the circles have the identical attributes (transparency, skinny stroke, and uniform shade).

To create the ripple-like impact, apply the remodel: scale() property to develop every circle. The growth will occur whereas regularly fading it out, making a easy ripple animation

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@keyframes ripple {

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  0% {

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    remodel: scale(0);

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    opacity: 1;

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  }

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  100% {

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    remodel: scale(1);

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    opacity: 0;

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  }

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}

To make sure the ripple impact seems easy, apply an animation delay to the second and third circles. It will give every circle its personal timing and period. The primary circle begins instantly, adopted by the second after 0.5 seconds, and the third after 1 second.

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.ripple circle:nth-child(2) {

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  animation-delay: 0.5s;

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}

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.ripple circle:nth-child(3) {

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  animation-delay: 1s;

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}

Right here is the ultimate output. Be at liberty to fork the pen and play with the timings your self:

Bouncing Bars

Bouncing bars are a easy and efficient strategy to point out loading states. This SVG consists of a number of vertical bars that develop and shrink in a staggered method, making a easy bouncing impact.

To create the SVG construction, add 3 rect components of the identical dimensions spaced at 20 items aside on the x-axis.

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<svg viewBox="0 0 100 100">

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  <rect class="bar bar1" x="8" y="10" rx="4" peak="40" width="8" fill="#3498db" />

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  <rect class="bar bar2" x="28" y="10" rx="4" peak="40" width="8" fill="#3498db" />

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  <rect class="bar bar3" x="48" y="10" rx="4" peak="40" width="8" fill="#3498db" />

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</svg>

The aim of the animation is to create a wave-like impact the place the bar oscillates up and down easily. We are going to obtain this by animating the peak and the y place of the bars utilizing CSS keyframes.

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@keyframes bars {

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  0% {

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    peak: 40px;

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    y: 10px;

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  }

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  100% {

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    peak: 10px;

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    y: 40px;

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  }

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}

To create a pure wave-like impact, add animation delays (0s, 0.3s, 0.45s) to make sure the bars transfer at completely different intervals, making a easy animation movement.

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.bar1 {

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  animation: bars 0.3s 0s linear infinite alternate;

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}

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.bar2 {

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  animation: bars 0.3s 0.3s linear infinite alternate;

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}

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.bar3 {

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  animation: bars 0.3s 0.45s linear infinite alternate;

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}

Right here is the ultimate output.

Spinning Dots

Our subsequent train, the spinning dots animation, is a fascinating strategy to point out a loading course of. It consists of a number of small dots evenly distributed in a round sample. The animation works by repeatedly rotating every dot whereas fading it out and in making a easy impact.

Let’s begin by creating the SVG construction consisting of 8 circles organized alongside a round path. 

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<svg class="spinning-dots" viewBox="0 0 100 100">

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    <circle cx="50" cy="20" r="4" fill="#3498db" />

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    <circle cx="67.32" cy="25.98" r="4" fill="#3498db" />

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    <circle cx="78.66" cy="41.34" r="4" fill="#3498db" />

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    <circle cx="80" cy="60" r="4" fill="#3498db" />

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    <circle cx="67.32" cy="74.02" r="4" fill="#3498db" />

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    <circle cx="50" cy="80" r="4" fill="#3498db" />

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    <circle cx="32.68" cy="74.02" r="4" fill="#3498db" />

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    <circle cx="20" cy="60" r="4" fill="#3498db" />

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</svg>

The cx and cy attributes will outline the place of every dot. As you possibly can see, all of the dots have the identical shade and radius.

The animation may have the next attributes: 

• rotation: The entire SVG will rotate at 360 levels, making a steady spinning impact.
• opacity: Every dot will fade out and in making a pulsating impact.

Let’s outline the animation with CSS keyframes.

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@keyframes spinAround {

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  100% {

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    remodel: rotate(360deg);

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  }

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}

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@keyframes opacity {

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  0%, 100% {

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    opacity: 0.2;

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  }

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  50% {

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    opacity: 1;

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  }

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}

Apply the rotation animation to all the SVG making it rotate each 3 seconds for a easy looping impact. The second animation will make the circles fade out and in repeatedly.

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.spinning-dots {

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  animation: spinAround 3s linear infinite;

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}

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.spinning-dots circle {

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  animation: opacity 1.2s ease-in-out infinite;

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}

Lastly, to realize the staggered pulsing impact, we are going to apply the opacity animation to every dot and add animation delays, making every dot fade out and in at completely different instances.

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.spinning-dots circle:nth-child(2) { animation-delay: 0.1s; }

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.spinning-dots circle:nth-child(3) { animation-delay: 0.2s; }

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.spinning-dots circle:nth-child(4) { animation-delay: 0.3s; }

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.spinning-dots circle:nth-child(5) { animation-delay: 0.4s; }

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.spinning-dots circle:nth-child(6) { animation-delay: 0.5s; }

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.spinning-dots circle:nth-child(7) { animation-delay: 0.6s; }

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.spinning-dots circle:nth-child(8) { animation-delay: 0.7s; }

The ultimate impact will appear like this: 

Round Spinner

On to the following one! This round spinner is an efficient strategy to point out a loading standing or ready interval in net purposes. The SVG construction will encompass a clear circle with a visual stroke. Animating the stroke will create a easy spinning impact.

The SVG construction will appear like this:

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<svg class="circle-spinner" viewBox="0 0 100 100">

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  <circle cx="50" cy="50" r="40" fill="none" stroke="#3498db"

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   stroke-width="8" stroke-linecap="spherical" />

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</svg>

Right here we’ve a circle with a radius of 40. The attribute fill:"none" makes the circle clear, guaranteeing the stroke with easy edges is seen.

We are going to solely animate the stroke-dashoffset property to make the stroke appear like it’s being drawn repeatedly.  

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@keyframes circleRotate {

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  0% {

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    stroke-dashoffset: 251;

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  }

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  100% {

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    stroke-dashoffset: 0;

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  }

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}

Lastly, let’s apply the animation to the circle making it animate infinitely over 2 seconds for a easy looping impact.

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.circle-spinner circle {

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  stroke-dasharray: 250;

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  transform-origin: heart;

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  animation: circleRotate 2s linear infinite;

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}

Right here is the ultimate output.

Loading Dots Animation

A loading dots animation is commonly utilized in typing indicators or loading states, the place the dots fade out and in sequentially making a easy animation.

The SVG construction will consist of three circle components positioned alongside the identical x place and 20 items aside.

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 <svg width="60" peak="15" viewBox="0 0 100 100">

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    <circle class="dot" cx="10" cy="7.5" r="4" fill="#3498db" />

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    <circle class="dot" cx="30" cy="7.5" r="4" fill="#3498db" />

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    <circle class="dot" cx="50" cy="7.5" r="4" fill="#3498db" />

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  </svg>

Let’s begin by including the opacity animation utilizing CSS keyframes.

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@keyframes reveal {

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  0%, 100% {opacity:0.2;}

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  50% {opacity:1;}

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}

At 0% and 100%, the circles are pale out. At 50%, the circles are totally seen, making a easy, pulsing impact that provides the dots  a fade out and in impact.

To attain the wave-like impact, we are going to add the animation delays to every circle to make sure they pulse at completely different instances. 

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.dot{

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  animation: reveal 1.4s infinite;

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  animation-fill-mode: each;

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}

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.dot:nth-child(2){

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  animation-delay: 0.2s;

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}

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.dot:nth-child(3){

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  animation-delay: 0.4s;

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}

Right here is the ultimate impact.