html,
body,
div,
span,
object,
li,
ul,
img iframe,
h1,
h2,
h3,
h4,
h5,
h6,
p,
pre,
a,
em,
img,
strong,
sub,
sup,
b,
i,
dl,
dt,
dd,
ol,
ul,
li,
fieldset,
form,
label,
legend,
table,
tbody,
tfoot,
thead,
tr,
th,
td,
article,
aside,
canvas,
details,
embed,
input,
figure,
figcaption,
footer,
header,
menu,
nav,
output,
ruby,
section,
summary,
time,
mark,
audio,
video {
  margin: 0;
  padding: 0;
  border: 0;
  outline: none;
  font-size: 100%;
  font-family: "Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "微软雅黑", Arial, sans-serif;
  box-sizing: border-box;}

li {
  list-style: none;}

img {
  width: auto;
  height: auto;
  border-width: 0 0 0 0;}

a {
  text-decoration: none;
  /* 去除这个高亮，这样在移动端点击按钮 */
  -webkit-tap-highlight-color: rgba(0, 0, 0, 0);}

html,
body {
  min-height: 100%;
  width: 100%;
  overflow-x: hidden;}

@media screen and (min-width: 769px) {

  /* IE 浏览器 */
  * {
    /*三角箭头的颜色*/
    scrollbar-arrow-color: #f2f2f2;
    /*滚动条滑块按钮的颜色*/
    scrollbar-face-color: #666;
    /*滚动条整体颜色*/
    scrollbar-highlight-color: #000;
    /*滚动条阴影*/
    scrollbar-shadow-color: #000;
    /*滚动条轨道颜色*/
    scrollbar-track-color: #000;
    /*滚动条3d亮色阴影边框的外观颜色——左边和上边的阴影色*/
    scrollbar-3dlight-color: #000;
    /*滚动条3d暗色阴影边框的外观颜色——右边和下边的阴影色*/
    scrollbar-darkshadow-color: #000;
    /*滚动条基准颜色*/
    scrollbar-base-color: #000;}

  /* 谷歌 */
  /*定义整个滚动条高宽及背景：高宽分别对应横竖滚动条的尺寸*/
  ::-webkit-scrollbar {
    width: 10px;
    background-color: #000;}

  /*定义滚动条轨道：内阴影+圆角*/
  ::-webkit-scrollbar-track {
    background-color: #000;
    border-radius: 0;}

  /*定义滑块：内阴影+圆角*/
  ::-webkit-scrollbar-thumb {
    border-radius: 5px;
    background-color: #666;}
}