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<html><head><style> #myDIV { animation: mymove 5s infinite;}@keyframes mymove { 50% {text-shadow: 10px 20px 30px blue;}}</style></head><body><h1>Animation of text-shadow</h1><p>Gradually change the text-shadow property:<p><div id="myDIV"> <h1>This is a header</h1> <p>This is a paragraph</p></div></body></html>