/*html {font-size:28.125vw;}
@media only screen and (min-width:640px) {
	html {font-size:180px;}
}*/
html {
    font-size: 625%;
}
@media screen and (min-width: 375px) {
    html {
        /* iPhone6的375px尺寸作为16px基准，414px正好18px大小, 600 20px */
        font-size: calc(625% + 20 * (100vw - 375px) / 39);
    }
}
@media screen and (min-width: 414px) {
    html {
        /* 414px-1000px每100像素宽字体增加1px(18px-22px) */
        font-size: calc(750% + 40 * (100vw - 414px) / 586);
    }
}
@media screen and (min-width: 600px) {
    html {
        /* 600px-1000px每100像素宽字体增加1px(20px-24px) */
        font-size: calc(875% + 40 * (100vw - 600px) / 400);
    }
}
@media screen and (min-width: 640px) {
	html {
		font-size: 150px;
	}
}
body {background:#f5f5f5;}
body.bw {background:#fff;}
body, button, input, select, textarea {font: .12rem/1.5 Helvetica, Arial, "MicroSoft YaHei", sans-serif;}
body, h1, h2, h3, h4, h5, h6, hr, p, dl, dd, ul, ol, button, input, textarea, form, th, td ,figure{margin: 0;}
ol,ul {padding:0;list-style:none;}
table {border-collapse:collapse;border-spacing: 0;}
table a {font-size:.12rem;}
a {text-decoration:none;cursor:pointer; color: inherit;}
a:hover {text-decoration:none;}
img {border:none;}
input[type="botton"] {word-wrap:break-word;outline:none;vertical-align:middle;}
input {border-radius:0;}
input[type="button"],input[type="submit"],input[type="reset"] {-webkit-appearance:none;}
i,em {font-style:normal;}/*有一定几率处理掉的属性*/
textarea {resize:none;-webkit-appearance: none;}
ins {text-decoration:none;}
:focus {outline:none;}
::-webkit-input-placeholder  {color: #999;}
::-moz-placeholder  {color: #999;}
:-ms-input-placeholder  {color: #999;}