css3_multicol.css Example File

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 body {
     font-family         : sans-serif;
     background          : #aaaaaa;
 }

 section {
     bottom              : 0;
     left                : 0;
     top                 : 12%;
     right               : 0;
     position            : absolute;
     padding-bottom      : 6em;
 }

 article {
     border-radius       : 1em;
     margin              : 1em;
     padding             : 1em;
     background          : #ffffff;
 }

 h1,h2,h3,h4 {
     text-align          : center;
     margin-top          : 0.0em;
 }

 nav.ad {
     width               : 500%;
     border              : thin #aaaaaa solid;
     background          : #dddddd;
     position            : absolute;
     top                 : 0%;
     height              : 10%;
     column-count        : 5;
     column-width        : 100%;
     -webkit-animation   : banner_scroll 30s infinite;
 }

 nav.ad > a {
     width               : 20%;
     height              : 100%;
     display             : inline-block;
     text-align          : center;
     padding-top         : 0.5em;
     text-decoration     : none;
     font-weight         : bold;
     color               : #000000;
     font-size           : larger;
 }

 nav.ad > a:nth-of-type(5n-0) { background : lightgreen; }
 nav.ad > a:nth-of-type(5n-1) { background : pink; }
 nav.ad > a:nth-of-type(5n-2) { background : plum; }
 nav.ad > a:nth-of-type(5n-3) { background : lightblue; }
 nav.ad > a:nth-of-type(5n-4) { background : lightcoral; }

 @-webkit-keyframes banner_scroll {
     0%  { left  : 0%; }
     18% { left : 0%; }
     20% { left : -100%; }
     38% { left : -100%; }
     40% { left : -200%; }
     58% { left : -200%; }
     60% { left : -300%; }
     78% { left : -300%; }
     80% { left : -400%; }
     95% { left : -400%; }
     100% { left : 0%; }
 }