/**
 * Eric Meyer's Reset CSS v2.0 (http://meyerweb.com/eric/tools/css/reset/)
 * http://cssreset.com
 */

html,
body,
div,
span,
applet,
object,
iframe,
p,
blockquote,
pre,
a,
abbr,
acronym,
address,
big,
cite,
code,
del,
dfn,
em,
img,
ins,
kbd,
q,
s,
samp,
small,
strike,
strong,
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 {
  margin: 0;
  padding: 0;
  border: 0;
  font: inherit;
  font-weight: normal;
  vertical-align: baseline;
}
/* HTML5 display-role reset for older browsers */
article,
aside,
details,
figcaption,
figure,
footer,
header,
hgroup,
menu,
nav,
section {
  display: block;
}
ol,
ul,
li {
  list-style: none;
}
blockquote,
q {
  quotes: none;
}
blockquote:before,
blockquote:after,
q:before,
q:after {
  content: "";
  content: none;
}
table {
  border-collapse: collapse;
  border-spacing: 0;
}

/* custom */
a,
a:hover {
  color: #333;
  text-decoration: none;
}
a:focus {
  text-decoration: none;
}
::-webkit-scrollbar {
  width: 5px;
  height: 5px;
}
::-webkit-scrollbar-track-piece {
  background-color: rgba(0, 0, 0, 0.2);
}
::-webkit-scrollbar-thumb:vertical {
  height: 5px;
  background-color: rgba(125, 125, 125, 0.7);
}
::-webkit-scrollbar-thumb:horizontal {
  width: 5px;
  background-color: rgba(125, 125, 125, 0.7);
}
html,
body {
  width: 100%;
  font-family: "Arial", "Microsoft YaHei", "黑体", "宋体", "微软雅黑",
    sans-serif;
  word-break: break-all;
}
body {
  line-height: 1;
  -webkit-text-size-adjust: none;
  -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
}
html {
  overflow-y: auto;
}
footer {
  overflow: hidden;
  margin-top: 1rem;
}

/*清除浮动*/
.clearfix:before,
.clearfix:after {
  content: " ";
  display: block;
  height: 0;
  clear: both;
  visibility: hidden;
}
.clearfix {
  *zoom: 1;
}

.video-js .vjs-progress-control:hover .vjs-mouse-display:after,
.video-js .vjs-progress-control:hover .vjs-play-progress:after,
.video-js .vjs-progress-control:hover .vjs-time-tooltip {
  white-space: nowrap;
}
.video-js .vjs-poster {
  background-size: cover;
}

.heart {
  display: inline-block;
  background-image: url(../../images/knowledge/xin_1.png);
  background-repeat: no-repeat;
  background-position: center center;
  width: 1.1rem;
  height: 1.1rem;
  cursor: pointer;
}