.bibtexnumber{
                color:purple;
        }
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        {
                        margin-left: 4em;
                        margin-right: 4em;
                        font-family: 'Trebuchet MS', Helvetica, sans-serif;
                        font-size: small;
                        background: #d5dff4;
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	sup
	{
		vertical-align: top; font-size: 0.6em;
	}