CSS Counter

by Keith Jeter

HTML

<div>1</div>
<div>2</div>
<div>3</div>
<div>4</div>
<div>5</div>
<div>6</div>
<div>7</div>
<div>8</div>
<div>9</div>
<div>10</div>
<div>11</div>
<div>12</div>
<div>13</div>
<div>14</div>
<div>15</div>
<div>16</div>
<div>17</div>
<div>18</div>
<div>19</div>
<div>20</div>
<div>21</div>
<div>22</div>

CSS

div {
    float:left;
    width: 75px;
    height: 75px;
    text-align: center;
    font-weight: bold;
    line-height: 75px;
    background: #ccc;
    margin: 5px;
}

div:nth-child(7n) {
    background: red;
}

div:nth-child(7n)::before {
    content:"buzz";
    color: #fff;
}

div:nth-child(11n) {
    background: yellow;
}

div:nth-child(11n)::before {
    content:"buzz";
    color: #000;
}