Syntax error in my CSS

I'm getting a syntax error message on line 15.

#block-877a19ac084842a08f1b {
background: #DEC1A6;
opacity: 50%;
padding: 20px; 
text-align: none;
}

#block-fb104f8c23dc8e2de3c0 {
background: #DEC1A6;
opacity: 50%;
padding: 20px; 
text-align: none;
}

<style>A:hover{cursor: url("https://downloads.totallyfreecursors.com/cursor_files/unicorn.ani"), url("https://downloads.totallyfreecursors.com/thumbnails/unicorn.gif"), auto;}</style>

You don’t need the surrounding <style></style>