body, h1, h2, h3, h4, h5, h6, hr, p, blockquote, dl, dt, dd, ul, ol, li, pre, form, fieldset, legend, button, input, textarea, th, td {
    margin: 0;
    padding: 0;
    }
    body, button, input, select, textarea {
    font: 14px "microsoft yahei";
    line-height: 1.5;
    -ms-overflow-style: scrollbar
    }
    h1, h2, h3, h4, h5, h6 {
    font-size: 100%
    }
    ul, ol {
    list-style: none
    }
    a {
    text-decoration: none;
    cursor:pointer
    }
    a:hover {
    text-decoration: underline
    }
    img {
    border: 0
    }
    button, input, select, textarea {
    font-size: 100%
    }
    table {
    border-collapse: collapse;
    border-spacing: 0
    }
    
    .clear {
    clear:both
    }
    .fr {
    float:right
    }
    .fl {
    float:left
    }
    .block {
    display:block;
    text-indent:-999em
    }