html,
body {
  overflow-x: hidden;
  -webkit-overflow-scrolling: touch;
  font-size: 12px;
  font-family:
    "lucida grande", "lucida sans unicode", lucida, helvetica,
    "Hiragino Sans GB", "Microsoft YaHei", "WenQuanYi Micro Hei", sans-serif;
  color: #333;
}
html,
body,
div,
ul,
ol,
li,
dl,
dt,
dd,
h1,
h2,
h3,
h4,
h5,
h6,
p,
table,
th,
td,
form,
fieldset,
legend,
input,
textarea,
select,
button,
hr,
blockquote,
pre {
  margin: 0;
  padding: 0;
  outline: none;
}
h1,
h2,
h3,
h4,
h5,
h6 {
  font-size: 100%;
  font-weight: bold;
  line-height: 1.2;
}
ul,
ol,
dl {
  list-style-type: none;
}
fieldset,
img {
  border: none;
}
table {
  border-collapse: collapse;
  table-layout: fixed;
  empty-cells: show;
}
caption,
th {
  text-align: left;
  font-weight: normal;
}
address,
caption,
cite,
code,
dfn,
th {
  font-style: normal;
  font-weight: normal;
}
input,
select,
textarea,
button {
  font-size: 100%;
  vertical-align: baseline;
  border: none;
}
textarea {
  vertical-align: top;
}
img {
  vertical-align: middle;
}
em,
i {
  font-style: normal;
}
ins {
  text-decoration: underline;
}
del {
  text-decoration: line-through;
}
q:before,
q:after {
  content: "";
}
hr {
  margin: 4px 0;
  border: none;
  border-top: 1px solid #ccc;
  border-bottom: 1px solid #fff;
}
a {
  text-decoration: none;
}
a:active {
  opacity: 0.7;
}
.flex {
  display: flex;
}
.flex-center {
  display: flex;
  align-items: center;
}
img.load-img[src=""],
img.load-img:not([src]) {
  opacity: 0;
}