CSS Property: offset-rotate

The offset-rotate property specifies the rotation of an element as it moves along a path defined by offset-path. When set, the element rotates according to the tangent at the position on the path determined by the offset-distance value. This property can be used for animations where the element moves along a curve, allowing for a more natural orientation of the element during its movement.

EXAMPLE

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>offset-rotate</title>
    <meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1">

    <style>
        * {
            box-sizing: border-box;
        }
        div {
            position: relative;
            width: 400px;
            height: 150px;
        }
        img {
            position: absolute;
            width: 60px;
            height: 60px;
            z-index: 1;
            offset-path: path("M 50 100 C 80 -10 150 100 380 60");
            animation: smiley 5s 1s 3;
        }

        img.a {
            offset-rotate: auto;
        }
        img.b {
            offset-rotate: auto 45deg;
        }
        img.c {
            offset-rotate: 45deg;
        }
        img.d {
            offset-rotate: 90deg;
        }

        @keyframes smiley {
            100%  {
                offset-distance: 100%;
            }
        }
        svg {
            position: absolute;
            height: 100%;
            width: 100%;
            left: 0;
            top: 0;
        }
    </style>
</head>
<body>
<h3>offset-rotate: auto;</h3>
<div>
    <img src="/demo/smiley-heart.png" alt="Smiley" class="a">
    <svg fill="none" stroke="gray" stroke-width="0.2" stroke-dasharray="10, 10">
        <path d="M 50 100 C 80 -10 300 100 380 60" />
    </svg>
</div>
<hr>
<h3>offset-rotate: auto 45deg;</h3>
<div>
    <img src="/demo/smiley-heart.png" alt="Smiley" class="b">
    <svg fill="none" stroke="gray" stroke-width="0.2" stroke-dasharray="10, 10">
        <path d="M 50 100 C 80 -10 300 100 380 60" />
    </svg>
</div>
<hr>
<h3>offset-rotate: 45deg;</h3>
<div>
    <img src="/demo/smiley-heart.png" alt="Smiley" class="c">
    <svg fill="none" stroke="gray" stroke-width="0.2" stroke-dasharray="10, 10">
        <path d="M 50 100 C 80 -10 300 100 380 60" />
    </svg>
</div>
<hr>
<h3>offset-rotate: 90deg;</h3>
<div>
    <img src="/demo/smiley-heart.png" alt="Smiley" class="d">
    <svg fill="none" stroke="gray" stroke-width="0.2" stroke-dasharray="10, 10">
        <path d="M 50 100 C 80 -10 300 100 380 60" />
    </svg>
</div>
</body>
</html>

RESULT