body, input, textarea {
    -webkit-text-size-adjust: none;
    -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
    font-family: 'PingFang SC', 'STHeitiSC-Light', 'Helvetica-Light', arial, sans-serif, 'Droid Sans Fallback';
    color: #333;
}
body, button, input, select, textarea {
    font-size: 16px;
    line-height: 1.5;
}
body, h1, h2, h3, h4, h5, h6, hr, p, blockquote, dl, dt, dd, ul, ol, li, pre, form, fieldset, legend, button, input, textarea, th, td, select {
    margin: 0;
    padding: 0;
}
input, input[type="search"], button, select, option, textarea, a {
    outline: none;
    border: 0;
    -webkit-appearance: none;
    border-radius: 0;
    background: none;
    -webkit-box-sizing: border-box;
    box-sizing: border-box;
}