html, body, div, span, applet, object, iframe,
h1, h2, h3, h4, h5, h6, p, blockquote, pre,
a, abbr, acronym, address, big, cite, code,
del, dfn, em, img, ins, kbd, q, s, samp,
small, strike, sub, sup, tt, var,
b, u, i, center,
dl, dt, dd, ol, ul, li,
fieldset, form, label, legend,
table, caption, tbody, tfoot, thead, tr, th, td,
article, aside, canvas, details, embed,
figure, figcaption, footer, header, hgroup,
menu, nav, output, ruby, section, summary,
time, mark, audio, video, button {
  margin: 0;
  padding: 0;
  border: 0;
  font-size: 100%;
  font: inherit;
  vertical-align: baseline;
  -webkit-touch-callout: none;
  -webkit-text-size-adjust: none;
  -webkit-tap-highlight-color: transparent; }

* {
  box-sizing: border-box; }

ol, ul {
  list-style: none; }

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

body {
  font-family: -apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Helvetica,PingFang SC,Hiragino Sans GB,Microsoft YaHei,SimSun,sans-serif;
  line-height: 1.5; }

input,
label,
select,
option,
textarea,
button,
fieldset,
legend {
  font: inherit;
  color: inherit; }

button,
input,
textarea {
  border: 0; }

button:active,
button:focus,
a:active,
a:hover,
input:active,
input:focus {
  outline: 0; }

a {
  text-decoration: none;
  color: #333; }

/*
 * Allow only vertical resizing of textareas.
 */
textarea {
  resize: vertical; }

i {
  font-style: normal; }

.clearfix:before,
.clearfix:after {
  content: " ";
  display: table; }

.clearfix:after {
  clear: both; }