#app{
    font-size: 28px;
}
* { margin: 0px; padding:0}
div{
    box-sizing: border-box;
}
body{
    line-height: 1.6;
    font-family: -apple-system-font, "Helvetica Neue", sans-serif;
}
p,span {
    margin: 0;
    padding: 0;
}
a {
    text-decoration: none;
}
input{
    -webkit-appearance: none;
}

li {
    list-style: none;
}

// 禁止页面打印
@media print{
    body{
      display: none;
    }
}