YaHoo 重设HTML标签的CSS默认样式如下：

body,div,dl,dt,dd,ul,ol,li,h1,h2,h3,h4,h5,h6,pre,
form,fieldset,input,textarea,p,blockquote,th,td {
padding: 0;
margin: 0;
}

table {
border-collapse: collapse;
border-spacing: 0;
}

fieldset,img {
border: 0;
}

address,caption,cite,code,dfn,em,strong,th,var {
font-weight: normal;
font-style: normal;
}

ol,ul {
list-style: none;
}

caption,th {
text-align: left;
}

h1,h2,h3,h4,h5,h6 {
font-weight: normal;
font-size: 100%;
}

q:before,q:after {
content:”;
}

abbr,acronym { border: 0;
}