https://i.sstatic.net/8dT9W.gif
Is there a method to create a similar effect using CSS, JS, or GSAP?
https://i.sstatic.net/8dT9W.gif
Is there a method to create a similar effect using CSS, JS, or GSAP?
An easy CSS demonstration
div {
height: 100px;
width: 100px;
position: relative;
background: blue;
border-radius: 10px;
}
span {
height: 10px;
width: 50%;
left: 50%;
top: calc(50% - 5px);
position: absolute;
background: white;
border-radius: 10em;
animation-name: rotate;
animation-duration: 2000ms;
animation-iteration-count: infinite;
animation-timing-function: linear;
transform-origin: left center;
}
@keyframes rotate {
from {
transform: rotate(0deg);
}
to {
transform: rotate(360deg);
}
}
<div>
<span></span>
</div>
To achieve this effect, you can create a rotation keyframe using the CSS property transform: rotateZ
. It is important to specify the transform-origin
as left center
, so that the "needle" div rotates around its left side rather than the center.
.needle {
width: 100px;
height: 20px;
background-color: lightgray;
position: absolute;
left: 50%;
top: calc(50% - 10px);
border-radius: 40px;
transform-origin: left center;
animation: rotation 2s linear infinite;
}
@keyframes rotation {
from {
transform: rotateZ(0);
}
to {
transform: rotateZ(360deg);
}
}
.container {
width: 200px;
height: 200px;
background-color: darkblue;
position: relative;
border-radius: 10px;
}
<div class="container">
<div class="needle"></div>
</div>
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