* {
  margin: 0;
  padding: 0;
  outline: none;
  -webkit-tap-highlight-color: transparent;
  box-sizing: border-box;
}

img {
  border: none;
  vertical-align: text-bottom;
}

a {
  color: inherit;
  text-decoration: none;
}

html {
  font-family: -apple-system, BlinkMacSystemFont, Helvetica Neue, PingFang SC,
    Microsoft YaHei, Source Han Sans SC, Noto Sans CJK SC, WenQuanYi Micro Hei,
    sans-serif;
  color: #000;
  font-size: 14px;
  background: #fff;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  margin: 0;
  font-weight: normal;
  font-size: 14px;
}

ul,
ol,
li {
  list-style: none;
}

input::-webkit-outer-spin-button,
input::-webkit-inner-spin-button {
  -webkit-appearance: none;
}
input[type="number"] {
  -moz-appearance: textfield;
}

.fl {
  display: block;
  float: left;
}

.mr10 {
  margin-right: 10px !important;
}
.mr15 {
  margin-right: 15px !important;
}

.mr20 {
  margin-right: 20px !important;
}