I never used github but I can give the code I updated Only changed lines 7 to 10 in the html : <input type="radio" name="attr_tab" class="sheet-tab sheet-tab1" value="1" title="Home" checked="checked" /><span title="Character"></span> <input type="radio" name="attr_tab" class="sheet-tab sheet-tab2" value="2" title="Notes" /><span title="Equipment"></span> <input type="radio" name="attr_tab" class="sheet-tab sheet-tab3" value="3" title="Perks" /><span title="Perks"></span> <input type="radio" name="attr_tab" class="sheet-tab sheet-tab4" value="4" title="Powers" /><span title="Powers"></span> And line 677 (class was tab6 instead of tab2) <div class="sheet-tab-content sheet-tab2"> And changed the firsts classes in the css : div.sheet-tab-content { display: none; } input.sheet-tab1:checked ~ div.sheet-tab1, input.sheet-tab2:checked ~ div.sheet-tab2, input.sheet-tab3:checked ~ div.sheet-tab3, input.sheet-tab4:checked ~ div.sheet-tab4, input.sheet-tab5:checked ~ div.sheet-tab5, input.sheet-tab6:checked ~ div.sheet-tab6 { display: block; } input.sheet-tab { width: 150px; height: 20px; position: relative; top: 5px; left: 6px; margin: -1.5px; cursor: pointer; z-index: 1; opacity: 0; } input.sheet-tab + span::before { content: attr(title); border: solid 1px #a8a8a8; border-bottom-color: black; text-align: center; display: inline-block; background: #fff; background: -moz-linear-gradient(to top, #c8c8c8, #fff, #c8c8c8); background: -webkit-linear-gradient(to top, #c8c8c8, #fff, #c8c8c8); background: -ms-linear-gradient(to top, #c8c8c8, #fff, #c8c8c8); background: -o-linear-gradient(to top, #c8c8c8, #fff, #c8c8c8); background: linear-gradient(to top, #c8c8c8, #fff, #c8c8c8); position: absolute; width: 150px; height: 20px; font-size: 18px; } input.sheet-tab + span:checked::before { background: #dcdcdc; background: -moz-linear-gradient(to top, #fcfcfc, #dcdcdc, #fcfcfc); background: -webkit-linear-gradient(to top, #fcfcfc, #dcdcdc, #fcfcfc); background: -ms-linear-gradient(to top, #fcfcfc, #dcdcdc, #fcfcfc); background: -o-linear-gradient(to top, #fcfcfc, #dcdcdc, #fcfcfc); background: linear-gradient(to top, #fcfcfc, #dcdcdc, #fcfcfc); border-bottom-color: #fff; position: absolute; } input.sheet-tab:not(:first-child) + span::before { border-left: none; } input.sheet-tab1 + span::before { left: 35px; } input.sheet-tab2 + span::before { left: 185px; } input.sheet-tab3 + span::before { left: 335px; } input.sheet-tab4 + span::before { left: 485px; } Not the cleanest thing but i'm no dev :p