& lthtml & gt
& lthead & gt
& lttitle & gt新文檔& lt/title & gt;
& ltmeta name = " generator " content = " editplus " & gt;
& ltmeta name = "
& lthtml & gt
& lthead & gt
& lttitle & gt新文檔& lt/title & gt;
& ltmeta name = " generator " content = " editplus " & gt;
& ltmeta name = " author " content = " " & gt;
& ltmeta name = " keywords " content = " " & gt;
& ltmeta name = " description " content = " " & gt;
& lt/head & gt;
& ltstyle & gt
。向上{
邊框-左側:5px solid # fff
右邊框:5px solid # fff
border-bottom:5px solid # f0f;
寬度:0;
高度:0;
字體大小:2px
}
。向下{
邊框-左側:5px solid # fff
右邊框:5px solid # fff
border-top:5px solid # f0f;
寬度:0;
高度:0;
字體大小:2px
}
。左側{
border-top:5px solid # fff;
邊框-底部:5px solid # fff
border-right:5px solid # f0f;
寬度:0;
高度:0;
字體大小:2px
}
。右{
border-top:5px solid # fff;
邊框-底部:5px solid # fff
border-left:5px solid # f0f;
寬度:0;
高度:0;
字體大小:2px
}
b{
保證金:10px;
}
& lt/style & gt;
& ltbody & gt
& ltb class="up " >& lt/b & gt;
& ltb class="down " >& lt/b & gt;
& ltb class="left " >& lt/b & gt;
& ltb class="right " >& lt/b & gt;
& lt/body & gt;
& lt/html & gt;