移動端rem切圖
阿新 • • 發佈：2017-11-29
footer thead table nts 等比例縮放 tab applet value details
1.為什麽用rem
根據屏幕大小，自動調整大小
2.如何使用rem
分以下幾步
a.用ps把設置稿弄成640px或者750px的（記得等比例縮放）
b.調試時記得把瀏覽器默認最小字體設置為最小。手機端是支持12px以下的字體的
c.引入meta頭
<meta name="viewport" content="width=device-width,minimum-scale=1.0,maximum-scale=1.0,user-scalable=no,minimal-ui">
d.引入reset文件
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html, body, div, span, applet, object, iframe,
h1, h2, h3, h4, h5, h6, p, blockquote, pre,
a, abbr, acronym, address, big, cite, code,
del, dfn, em, img, ins, kbd, q, s, samp,
small, strike, strong, sub, sup, tt, var,
b, u, i, center,
dl, dt, dd, ol, ul, li,
fieldset, form, label, legend,
table, caption, tbody, tfoot, thead, tr, th, td,
button,article, aside, canvas, details, embed, figure,
figcaption, footer, header, hgroup, menu, nav,
output, ruby, section, summary, time, mark,
audio, video {
margin: 0;
padding: 0;
border: 0;
vertical-align: baseline;
background: transparent;
outline: none;
-webkit-box-sizing: border-box;-moz-box-sizing: border-box;
box-sizing: border-box;
}
article, aside, details, figcaption, figure, footer, header, hgroup, menu, nav, section { display: block; }
ol, ul { list-style: none; }
button{background: transparent;}
blockquote, q { quotes: none; }
blockquote:before, blockquote:after, q:before, q:after { content: ‘‘; content: none; }
strong { font-weight: bold; }
table { border-collapse: collapse; border-spacing: 0; }
img { border: 0; max-width: 100%; }
html{
line-height: initial;
}
body{
font-size: 0.32rem;
}
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e.引入js媒體查詢文件
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(function(doc, win) {
var docEl = doc.documentElement,
resizeEvt = ‘orientationchange‘ in window ? ‘orientationchange‘ : ‘resize‘,
recalc = function() {
var clientWidth = docEl.clientWidth;
if (!clientWidth) return;
if (clientWidth >= 750) {
docEl.style.fontSize = ‘100px‘;
} else {
docEl.style.fontSize = 100 * (clientWidth / 750) + ‘px‘;
}
};
if (!doc.addEventListener) return;
win.addEventListener(resizeEvt, recalc, false);
doc.addEventListener(‘DOMContentLoaded‘, recalc, false);
})(document, window);
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f.直接在750px或640px的情況下切圖，單位也直接用px
g.到http://www.520ued.com/把px轉為rem,html的字體大小填100px。
H.收工！！
參考資料:
http://www.520ued.com/
http://bbs.it-home.org/thread-64920-1-1.html
移動端rem切圖