/* Formatting evolved in the IP section to show packet layouts. */
table { border-collapse: collapse }
table.clean td { text-align: center; }
table.clean tr.hdr td { font-weight:
    			bold; text-decoration: underline;
		        vertical-align: bottom; }
table.clean tr td:nth-child(n+2) { padding-left: 1em }
table.clean tr.uline td { border-bottom: 1pt solid black; }
table.box { width: 80%; margin-left: 10%;
    	    margin-top: 0.5em; margin-bottom: 0.5em; }
table.box td { border-bottom: 1pt solid black;
    	       border-right: 1pt solid black;
		text-align: center; vertical-align: middle; }
table.box tr:first-child td { border-top: 1pt solid black; }
table.box td:first-child { border-left: 1pt solid black; }
div.box { width: 80%; margin-left: 10%; 
          margin-top: 0.5em; margin-bottom: 0.5em }
div.box div { white-space: nowrap; }
div.box div div { display: inline-block; text-align: center;
    	    	  border-bottom: 1pt solid black;
    	          border-right: 1pt solid black;
		  padding-top: 0.25em; badding-bottom: 0.25em; }
div.box div:first-child div { border-top: 1pt solid black; }
div.box div div:first-child { border-left: 1pt solid black; }
table.lft tr td:nth-child(n+2) { text-align: left; padding-left: 0pt  }