html, body, div, span, iframe, h1, h2, h3, h4, h5, h6, p, blockquote, pre, a, address, big, cite, code, del, em, font, img, ins, small, strong, var, b, u, i, center, dl, dt, dd, ol, ul, li, fieldset, form, label, legend,input {
    margin: 0;
    padding: 0;
}
img{
    border: none;vertical-align: top;
}
.fr {
    float: right;
}
.fl {
    float: left;
}
.clear:after {
    content: '';
    clear: both;
    display: block;
}