/*共同样式*/
html, body {
    font-family: PingFangSC-Regular, 'Source Sans Pro', 'Helvetica Neue', Helvetica, Arial, sans-serif;
    -webkit-text-size-adjust: none;
    word-break: break-all;
    width: 100%;
    height: 100%;
}

html, body, div, span, object, iframe, h1, h2, h3, h4, h5, h6, p, blockquote, a, code, em, img, q, small, strong, dd, dl, dt, li, ol, ul, fieldset, form, label, table, tbody, tr, th, td, input, figure, section, button {
    margin: 0;
    padding: 0;
    border: 0;
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
}

input, button, select {
    outline: none;
    border-radius: 2px;
}

button {
    cursor: pointer;
}

i {
    font-style: normal;
}

ul, li {
    list-style: none;
}

a {
    text-decoration: none;
    -webkit-tap-highlight-color: rgba(255, 255, 255, 0);
    -webkit-user-select: none;
    -moz-user-select: none;
}

var {
    font-style: normal;
}

.hide, #hide {
    display: none;
}

.ml10 {
    margin-left: 10px;
}

.mt20 {
    margin-top: 20px;
}

.mb20 {
    margin-bottom: 20px;
}

.c {
    text-align: center;
}

.red {
    color: red;
}

.blue {
    color: blue;
}

.green {
    color: green;
}

.gray {
    color: gray;
}

.btn {
    user-select: none;
    cursor: pointer;
    text-align: center;
    border-radius: 2px;
}

.B {
    font-weight: bold;
}

.tr {
    display: table-row;
}

.td {
    display: table-cell;
}

.fl {
    float: left;
}

.fr {
    float: right;
}

.required{
    float: right;
    color: red;
    padding-right: 5px;
}