用CSS制作伪标签云

<ul class="cloud">
    <li>performance testing</li>
    <li>stress testing</li>
    <li>conformance testing</li>
    <li>acceptane testing</li>
    <li>smoke testing</li>
    ...
</ul>

/* 清除ul默认样式 */

.cloud {
    display: inline;
    list-style-type: none;
    width: 400px;
}
.cloud li {
    list-style: none;
    display: inline;
}

/* 清除ul默认样式 */

.cloud li:nth-of-type(3n + 1) {
    font-size: 1.25em;
}
.cloud li:nth-of-type(4n+3) {
    font-size: 1.5em;
}
.cloud li:nth-of-type(5n - 3) {
    font-size: 1em;
}