@charset 'UTF-8';
/*! normalize.css v2.1.2 | MIT License | git.io/normalize */
/* ==========================================================================
   HTML5 display definitions
   ========================================================================== */
/**
 * Correct `block` display not defined in IE 8/9.
 */
article,
aside,
details,
figcaption,
figure,
footer,
header,
hgroup,
main,
nav,
section,
summary
{
  display: block;
}

/**
 * Correct `inline-block` display not defined in IE 8/9.
 */
audio,
canvas,
video
{
  display: inline-block;
}

/**
 * Prevent modern browsers from displaying `audio` without controls.
 * Remove excess height in iOS 5 devices.
 */
audio:not([controls])
{
  display: none;
  height: 0;
}

/**
 * Address styling not present in IE 8/9.
 */
[hidden]
{
  display: none;
}

/* ==========================================================================
   Base
   ========================================================================== */
/**
 * 1. Set default font family to sans-serif.
 * 2. Prevent iOS text size adjust after orientation change, without disabling
 *    user zoom.
 */
html
{
    /* 10px 相当 */
  font-family: sans-serif;
  font-size: 62.5%;
    /* 1 */;
}

/**
 * Remove default margin.
 */
body
{
  margin: 0;
}

/* ==========================================================================
   Links
   ========================================================================== */
/**
 * Address `outline` inconsistency between Chrome and other browsers.
 */
a:focus
{
  outline: thin dotted;
}

a:active,
a:hover
{
  outline: 0;
}

/**
 * Improve readability when focused and also mouse hovered in all browsers.
 */
/* ==========================================================================
   Typography
   ========================================================================== */
/**
 * Address styling not present in IE 8/9, Safari 5, and Chrome.
 */
abbr[title]
{
  border-bottom: 1px dotted;
}

/**
 * Address style set to `bolder` in Firefox 4+, Safari 5, and Chrome.
 */
b,
strong
{
  font-weight: bold;
}

/**
 * Address styling not present in Safari 5 and Chrome.
 */
dfn
{
  font-style: italic;
}

/**
 * Address differences between Firefox and other browsers.
 */
hr
{
  box-sizing: content-box;
  height: 0;
}

/**
 * Address styling not present in IE 8/9.
 */
mark
{
  color: #000;
  background: #ff0;
}

/**
 * Correct font family set oddly in Safari 5 and Chrome.
 */
code,
kbd,
pre,
samp
{
  font-family: monospace, serif;
  font-size: 1em;
}

/**
 * Improve readability of pre-formatted text in all browsers.
 */
pre
{
  white-space: pre-wrap;
}

/**
 * Set consistent quote types.
 */
q
{
  quotes: '\201C' '\201D' '\2018' '\2019';
}

/**
 * Address inconsistent and variable font size in all browsers.
 */
small
{
  font-size: 80%;
}

/**
 * Prevent `sub` and `sup` affecting `line-height` in all browsers.
 */
sub
{
  font-size: 75%;
  line-height: 0;
  position: relative;
  vertical-align: baseline;
}

sup
{
  font-size: 75%;
  line-height: 0;
  position: relative;
  top: -.5em;
  vertical-align: baseline;
}

sub
{
  bottom: -.25em;
}

/* ==========================================================================
   Embedded content
   ========================================================================== */
/**
 * Remove border when inside `a` element in IE 8/9.
 */
img
{
  border: 0;
}

/**
 * Correct overflow displayed oddly in IE 9.
 */
svg:not(:root)
{
  overflow: hidden;
}

/* ==========================================================================
   Figures
   ========================================================================== */
/**
 * Address margin not present in IE 8/9 and Safari 5.
 */
figure
{
  margin: 0;
}

/* ==========================================================================
   Forms
   ========================================================================== */
/**
 * Define consistent border, margin, and padding.
 */
fieldset
{
  margin: 0 2px;
  padding: .35em .625em .75em;
  border: 1px solid #c0c0c0;
}

/**
 * 1. Correct `color` not being inherited in IE 8/9.
 * 2. Remove padding so people aren't caught out if they zero out fieldsets.
 */
legend
{
    /* 1 */
    padding: 0;

    border: 0;
    /* 2 */
}

/**
 * 1. Correct font family not being inherited in all browsers.
 * 2. Correct font size not being inherited in all browsers.
 * 3. Address margins set differently in Firefox 4+, Safari 5, and Chrome.
 */
button,
input,
select,
textarea
{
    font-family: inherit;
    /* 1 */
    font-size: 100%;
    /* 2 */

    margin: 0;
    /* 3 */
}

/**
 * Address Firefox 4+ setting `line-height` on `input` using `!important` in
 * the UA stylesheet.
 */
button,
input
{
    line-height: normal;
}

/**
 * Address inconsistent `text-transform` inheritance for `button` and `select`.
 * All other form control elements do not inherit `text-transform` values.
 * Correct `button` style inheritance in Chrome, Safari 5+, and IE 8+.
 * Correct `select` style inheritance in Firefox 4+ and Opera.
 */
button,
select
{
    text-transform: none;
}

/**
 * 1. Avoid the WebKit bug in Android 4.0.* where (2) destroys native `audio`
 *    and `video` controls.
 * 2. Correct inability to style clickable `input` types in iOS.
 * 3. Improve usability and consistency of cursor style between image-type
 *    `input` and others.
 */
button,
html input[type='button']
{
    /* 2 */
    cursor: pointer;

    -webkit-appearance: button;
    /* 3 */
}

input[type='reset'],
input[type='submit']
{
    /* 2 */
    cursor: pointer;

    -webkit-appearance: button;
    /* 3 */
}

/**
 * Re-set default cursor for disabled elements.
 */
button[disabled],
html input[disabled]
{
    cursor: default;
}

/**
 * 1. Address box sizing set to `content-box` in IE 8/9.
 * 2. Remove excess padding in IE 8/9.
 */
input[type='checkbox'],
input[type='radio']
{
    box-sizing: border-box;
    /* 1 */
    padding: 0;
    /* 2 */
}
input[type='search']
{
    /* 1 */
    /* 2 */
    box-sizing: content-box; 

    -webkit-appearance: textfield;
}
input[type='search']::-webkit-search-cancel-button,
input[type='search']::-webkit-search-decoration
{
    -webkit-appearance: none;
}

/**
 * 1. Address `appearance` set to `searchfield` in Safari 5 and Chrome.
 * 2. Address `box-sizing` set to `border-box` in Safari 5 and Chrome
 *    (include `-moz` to future-proof).
 */
/**
 * Remove inner padding and search cancel button in Safari 5 and Chrome
 * on OS X.
 */
/**
 * Remove inner padding and border in Firefox 4+.
 */
button::-moz-focus-inner,
input::-moz-focus-inner
{
    padding: 0; 

    border: 0;
}

/**
 * 1. Remove default vertical scrollbar in IE 8/9.
 * 2. Improve readability and alignment in all browsers.
 */
textarea
{
    overflow: auto;
    /* 1 */

    vertical-align: top;
    /* 2 */
}

/* ==========================================================================
   Tables
   ========================================================================== */
/**
 * Remove most spacing between table cells.
 */
table
{
    border-spacing: 0; 
    border-collapse: collapse;
}