body,ul,ol,dl,dd,h1,h2,h3,h4,h5,h6,p,input,select,textarea,form{margin: 0; padding: 0;}
body{font:14px/1.5 "宋体";}
img{border:none;}
ul,ol{list-style:none;}
input,select,textarea{outline:none;border:none;background:none;}
textarea{resize:none;}
a{text-decoration:none;}

/清浮动/
.clearfix:after{content:"";display:block;clear:both;}
.clearfix{zoom:1;}

选择
::selection {background-color:#669900; color:#ffffff; text-shadow:none;}
::-moz-selection {background-color:#669900; color:#ffffff;text-shadow:none;}

去掉a的下划线
a {blr:expression(this.onFocus=this.blur())} /if IE/
a {outline:none;}/if 火狐等现代浏览器浏览器/

省略号
white-space:nowrap;overflow:hidden;text-overflow:ellipsis;

英文自动换行
word-break: break-all;

强制不换行
white-space:nowrap;

contenteditable="true"

clearfix完整版

.clearfix:before,.clearfix:after { content:""; display:table;}
.clearfix:after{clear:both;}
.clearfix{*zoom:1;}

expression(this.onFocus=this.blur())