body,
html {
    height: 100%;
    width: 100%;
    margin: 0;
    padding: 0;
}

html {
    font-size: 100px;
    font-family: Arial;
    /* overflow: auto; */
    scrollbar-width: none;
    /* -ms-overflow-style: none; */
}

::-webkit-scrollbar {
    display: none;
    /* Chrome Safari */
}

html,
body,
div,
dl,
dt,
dd,
ul,
ol,
li,
h1,
h2,
h3,
h4,
h5,
h6,
pre,
code,
form,
fieldset,
legend,
textarea,
p,
blockquote,
th,
td,
input,
select,
textarea,
button {
    margin: 0;
    padding: 0
}

fieldset,
lengend,
button,
input,
textarea,
th,
td {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body,
button,
input,
select,
textarea {
    font-family: Arial;
    background: #fff;
    -webkit-text-size-adjust: 100%
}

img {
    height: auto;
    width: auto;
    max-width: 100%;
    max-height: 100%;
    border: 0;
    vertical-align: middle
}

ul,
ol {
    list-style: none;
}

a {
    display: block;
    text-decoration: none;
}

a:hover {
    text-decoration: none;
}

a:focus {
    text-decoration: none;
}

button,
input,
select,
textarea {
    font-size: 100%;
    outline: none;
}

em {
    font-style: normal
}

/*  浮动 */
.left {
    float: left
}

.right {
    float: right
}

/* 显示隐藏 */
.hide {
    display: none
}

.block {
    display: block
}

/*  清楚浮动 */

.clearfix:after {
    display: block;
    clear: both;
    content: "";
    visibility: hidden;
    height: 0
}

.clearfix {
    zoom: 1
}

@media screen and (max-width: 1920px) {
    html {
        font-size: 625%;
    }
}

@media screen and (max-width: 1600px) {
    html {
        font-size: 520.8333333333334%;
    }
}

@media screen and (max-width: 1440px) {
    html {
        font-size: 468.75%;
    }
}

@media screen and (max-width: 1366px) {
    html {
        font-size: 444.6614583333333%;
    }
}

@media screen and (max-width: 1200px) {
    html {
        font-size: 390.625%;
    }
}

@media screen and (max-width: 1024px) {
    html {
        font-size: 333.33333333333337%;
    }
}

@media screen and (max-width: 600px) {
    html {
        font-size: 195.3125%;
    }
}