css控制英文字母的大小写

<style>
.uc{text-transform:uppercase;/*用此样式后英文字母都显示为大写*/}
.lc{text-transform:lowercase;/*用此样式后英文字母都显示为小写*/}
</style>
<div class="uc">all the english word in this div be changed to upper case</div>
<br />
<div class="lc">all the english word in this div be changed to lower case</div>