移動端rem切圖

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1.為什麼用rem

根據螢幕大小,自動調整大小

2.如何使用rem

分以下幾步

a.用ps把設定稿弄成640px或者750px的(記得等比例縮放)

b.調試時記得把瀏覽器預設最小字型設定為最小。手機端是支援12px以下的字型的

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檔案

?
12345678910111213141516171819202122232425262728293031323334353637 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;}

  

e.引入js媒體查詢檔案

?
12345678910111213141516 (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);

  

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的字型大小填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

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