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

h1, h2, h3, h4, h5, h6 {
    font-size: 16px;
    font-weight: 400
}

em, i {
    font-style: normal
}

ul, ol {
    list-style: none;
    margin: 0 !important;
    padding: 0 !important;
}

label {
    cursor: pointer
}

a {
    text-decoration: none;
}

/* 设置网页主体的背景颜色、外间距、内间距、行高、字体大小、字体家族 */
body {
    background: #fff;
    margin: 0;
    padding: 0;
    line-height: 1;
    font-size: 14px;
    font-family: "Microsoft YaHei", "微软雅黑", Tahoma, Arial
}

/* 页面布局 */
.wt1000 {
    width: 1000px;
    margin: 0 auto
}

.w220 {
    width: 220px
}

.layout {
    width: 100%
}

/* 鼠标样式 */
.pointer {
    cursor: pointer
}

/* 告诉部分浏览器不要给图片添加边框 */
img {
    border: none
}

table, th, td {
    border-collapse: collapse;
    border-spacing: 0
}