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<!DOCTYPE html>
<html>
<head>
<style> 
#myDIV {
    border: 1px solid black;
    width: 300px;
    color: red;
    -webkit-animation: mymove 5s infinite; /* Chrome, Safari, Opera */
    animation: mymove 5s infinite;
}

/* Chrome, Safari, Opera */
@-webkit-keyframes mymove {
    50% {color: blue;}
}

/* Standard syntax */
@keyframes mymove {
    50% {color: blue;}
}
</style>
</head>
<body>

<p>Gradually change the color of the text, from red, to blue, and back to red:<p>

<div id="myDIV">
  <h1>This is a header</h1>
  <p>This is a paragraph</p>
</div>

<p>The color property is <em>animatable</em> in CSS.</p>
<p><b>Note:</b> CSS Animations do not work in Internet Explorer 9 and earlier versions.</p>

</body>
</html>