- First list item
- This second list item should have a green background
- Third list item
- This fourth list item should have a green background
- Fifth list item
- This sixth list item should have a green background
  - This first list item should have a green background
- Second list item
- This third list item should have a green background
- Fourth list item
- This fifth list item should have a green background
- Sixth list item
  
| 1.1 | 1.2 | 1.3 | 
  
| 2.1 | 2.2 | 2.3 | 
  
| Green row : 3.1 | 3.2 | 3.3 | 
  
| Green row : 4.1 | 4.2 | 4.3 | 
  
| Green row : 5.1 | 5.2 | 5.3 | 
  
| Green row : 6.1 | 6.2 | 6.3 | 
  
| 1.1 | green cell | 1.3 | 1.4 | green cell | 1.6 | 1.7 | green cell | 
  
| 2.1 | green cell | 2.3 | 2.4 | green cell | 2.6 | 2.7 | green cell | 
  
| 3.1 | green cell | 3.3 | 3.4 | green cell | 3.6 | 3.7 | green cell | 
 
 
   .green { background-color : lime ! important }
ul > li:nth-last-child(odd) { background-color : red }
ol > li:nth-last-child(even) { background-color : red }
table.t1 tr:nth-last-child(-n+4) { background-color : red }
table.t2 td:nth-last-child(3n+1) { background-color : red }
   
<ul>
  <li>First list item</li>
  <li class="green">This second list item should have a green background</li>
  <li>Third list item</li>
  <li class="green">This fourth list item should have a green background</li>
  <li>Fifth list item</li>
  <li class="green">This sixth list item should have a green background</li>
</ul>
<ol>
  <li class="green">This first list item should have a green background</li>
  <li>Second list item</li>
  <li class="green">This third list item should have a green background</li>
  <li>Fourth list item</li>
  <li class="green">This fifth list item should have a green background</li>
  <li>Sixth list item</li>
</ol>
<div align="center">
<table border="1" class="t1">
  <tr>
<td>1.1</td>
<td>1.2</td>
     <td>1.3</td>
</tr>
  <tr>
<td>2.1</td>
<td>2.2</td>
     <td>2.3</td>
</tr>
  <tr class="green">
<td>Green row : 3.1</td>
<td>3.2</td>
     <td>3.3</td>
</tr>
  <tr class="green">
<td>Green row : 4.1</td>
<td>4.2</td>
      <td>4.3</td>
</tr>
  <tr class="green">
<td>Green row : 5.1</td>
<td>5.2</td>
      <td>5.3</td>
</tr>
  <tr class="green">
<td>Green row : 6.1</td>
<td>6.2</td>
      <td>6.3</td>
</tr>
</table>
<p></p>
<table class="t2" border="1">
  <tr>
<td>1.1</td>
<td class="green">green cell</td>
<td>1.3</td>
      <td>1.4</td>
<td class="green">green cell</td>
<td>1.6</td>
      <td>1.7</td>
<td class="green">green cell</td>
</tr>
  <tr>
<td>2.1</td>
<td class="green">green cell</td>
<td>2.3</td>
      <td>2.4</td>
<td class="green">green cell</td>
<td>2.6</td>
      <td>2.7</td>
<td class="green">green cell</td>
</tr>
  <tr>
<td>3.1</td>
<td class="green">green cell</td>
<td>3.3</td>
      <td>3.4</td>
<td class="green">green cell</td>
<td>3.6</td>
      <td>3.7</td>
<td class="green">green cell</td>
</tr>
</table>
</div>