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From 2013.igem.org

.modeling-tutoril-table th { background-color: #b6e6fd; padding: 5px; box-shadow: 0px 0px 5px rgba(110,110,110, .8); width: 150px; } .modeling-tutoril-table td { padding: 5px; box-shadow: 0px 0px 5px rgba(110,110,110, .8); width: 150px; } #modeling_tutorial1 { width: 800px; margin-left:auto; margin-right:auto; text-align:center; }