*{ margin:0 auto; padding:0;}
html{
    font: 400 14px/20px "helvetica neue", helvetica, arial, sans-serif;
    -webkit-text-size-adjust: 100%;
    -ms-text-size-adjust: 100%;
    background: #fff;
    color: #444
}

html, body, div, p, ol, ul, li, dl, dt, dd, h1, h2, h3, h4, h5, h6, form, input, select, button, img, textarea, iframe, table, th, td {
    margin: 0 auto;
    padding: 0; 
}
img {
    border: medium none;
    vertical-align: middle;
}
ol, ul, li {
    list-style-type: none;
}
h1, h2, h3, h4, h5, h6, table, th, td {
    font-size: 100%;
    font-weight: normal;
}
body, input, select, button, textarea {
    font-family: "source sans pro",tahoma,microsoft yahei;
    font-size: 14px; 
}
.normal, em, i {
    font-style: normal;
    font-weight: normal;
}

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

a {
    color: #3f3e3e;
    text-decoration: none; 
    cursor:pointer;
}
a:hover {
    color: #0c76c8;
}
table {
    border-collapse: collapse;
}
input[type="button"] {
    outline: medium none;
}
.clear{
     clear: both;
}
.clearfix {
    display: block;
}
.overflow{ overflow:hidden}
.clearfix::after {
    clear: both;
    content: ".";
    display: block;
    font-size: 0;
    height: 0;
    visibility: hidden;
}
.fl {
    float: left;
}
.fr {
    float: right;
}
.tl {
    text-align: left;
}
.tc {
    text-align: center;
}
.tr {
    text-align: right;
}
.mar_t_15{ margin-top:15px; }