body {
  margin: 0;
  font-size: 12px;
  /* line-height          :1.5; */
  line-height: 1;
  -webkit-text-size-adjust: 100% !important;
  /*禁止IOS调整字体大小*/
  -webkit-overflow-scrolling: touch;
  /* 解决ios默认滑动很卡的情况 */
}
/* 禁止长按链接与图片弹出菜单 */
a, img {
    -webkit-touch-callout: none;
}
/* 禁止选中文本（如无文本选中需求，此为必选项） */
html, body {
    -webkit-user-select: none;
    user-select: none;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  margin: 0;
  font-size: 100%;
  font-weight: normal;
}

ul,
ol {
  list-style: none;
  margin: 0;
  padding: 0;
}

p,
dl,
dd {
  margin: 0;
}

img {
  vertical-align: top;
  border: none;
}

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

strong,
b {
  font-weight: normal;
}

i,
em {
  font-style: normal;
}

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

th {
  font-weight: normal;
  text-align: left;
  vertical-align: top;
}

td {
  text-align: left;
  vertical-align: top;
}

input {
  margin: 0;
  padding: 0;
  border: none;
  font-family: inherit;
}

input,
textarea {
  outline: none;
}

textarea {
  resize: none;
  overflow: auto;
}

.clearfix:after {
  content: "";
  display: block;
  clear: both;
}

a,
button,
input,
select,
textarea {
  -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
  /*去掉a、input和button点击时的蓝色外边框和灰色半透明背景*/
}

button,
input,
optgroup,
select,
textarea {
  -webkit-appearance: none;
  /*去掉webkit默认的表单样式*/
}