@charset "utf-8";

html {
    color: #000;
    background: #fff;
    overflow-y: scroll;
    -webkit-text-size-adjust: 100%;
    -ms-text-size-adjust: 100%;
}

html * {
    outline:none;
    -webkit-text-size-adjust: none;
    -webkit-tap-highlight-color:rgba(0,0,0,0);
}

html, body {
    font-family: Helvetica;        
}

/* 内外边距通常让各个浏览器样式的表现位置不同 */
body, div, dl, dt, dd, ul, ol, li, h1, h2, h3, h4, h5, h6, pre, code, form, fieldset, legend, input, textarea, p, blockquote, th, td, hr, button, article, aside, details, figcaption, figure, footer, header, hgroup, menu, nav, section {
    margin: 0;
    padding: 0;
}

input, select, textarea {
    font-size: 100%;
}

/* 去掉各 Table  cell 的边距并让其边重合 */
table {
    border-collapse: collapse;
    border-spacing: 0;
}

/* 去除默认边框 */
fieldset, img {
    border: 0;
}

/* 去掉 firefox 下此元素的边框 */
abbr, acronym {
    border: 0;
    font-variant: normal;
}

/* 一致的 del 样式 */
del {
    text-decoration: line-through;
}

address, caption, cite, code, dfn, em, th, var {
    font-style: normal;
    font-weight: 500;
}

/* 去掉列表前的标识, li 会继承 */
ol, ul {
    list-style: none;
}

/* 对齐是排版最重要的因素, 别让什么都居中 */
caption, th {
    text-align: left;
}

/* 来自 yahoo, 让标题都自定义, 适应多个系统应用 */
h1, h2, h3, h4, h5, h6 {
    font-size: 100%;
    font-weight: 500;
}

q:before, q:after {
    content: '';
}

/* 统一上标和下标 */
sub, sup {
    font-size: 75%;
    line-height: 0;
    position: relative;
    vertical-align: baseline;
}

sup {
    top: -0.5em;
}

sub {
    bottom: -0.25em;
}

/* 鼠标悬停 */
a:hover {
    text-decoration: underline;
}

/* 默认不显示下划线，保持页面简洁 */
ins, a {
    text-decoration: none;
}

textarea {
    resize:none;
}
input:focus, textarea:focus {
    outline:none;
}
input{
    background: #FFFFFF;
}
/* --ie清除--*/
select::-ms-expand{ display: none; }
/* --火狐、谷歌清除--*/
select{ 
    appearance:none; 
    -moz-appearance:none;  
    -webkit-appearance:none; 
}
option::-ms-expand{ display: none; }
option{
    -moz-appearance:none; /* Firefox */
    -webkit-appearance:none; /* Safari 和 Chrome */
    appearance:none;
}
/* --背景色字体颜色--*/
option:hover{
    color:#fff;
    background-color:#1E90FF;
}