标签:width 背景 html 代码 dex alt swipe 屏幕 背景图
今天遇到了全屏翻滚的网站首页,自然客户要求图片不能大量变形,于是,我通过写两个不同的类(每个类里面的background-images属性值URL不同),在页面里面通过jq判断屏幕大小,添加和删除自定义类。
jq代码如下:
$(function () { //判断是否宽屏 var winWide = window.screen.width; var wideScreen = false; if (winWide <= 1199) {//1199及以下分辨率 $(".swiper-wrapper > div:nth-of-type(1)").removeClass(‘slide1‘).addClass(‘slide1-phone‘); $(".swiper-wrapper > div:nth-of-type(2)").removeClass(‘slide2‘).addClass(‘slide2-phone‘); $(".swiper-wrapper > div:nth-of-type(3)").removeClass(‘slide3‘).addClass(‘slide3-phone‘); } else { $(".swiper-wrapper > div:nth-of-type(1)").addClass(‘slide1‘).removeClass(‘slide1-phone‘); $(".swiper-wrapper > div:nth-of-type(2)").addClass(‘slide2‘).removeClass(‘slide2-phone‘); $(".swiper-wrapper > div:nth-of-type(3)").addClass(‘slide3‘).removeClass(‘slide3-phone‘); wideScreen = true; //是宽屏 } })
css代码如下:
.slide1{ background-image: url(../images/index-bg1.jpg); background-size: cover; } .slide1-phone { background-image: url(../images/mb-p1-bc.jpg); background-size: cover; } .slide2{ background-image: url(../images/index-bg2.png); background-size: cover; text-align: center; } .slide2-phone { background-image: url(../images/mb-p2-bc.jpg); background-size: cover; } .slide3{ background-image: url(../images/index-bg3.jpg); background-size: cover; } .slide3-phone { background-image: url(../images/mb-p3-bc.jpg); background-size: cover; }
HTML代码如下:
标签:width 背景 html 代码 dex alt swipe 屏幕 背景图
原文地址:http://www.cnblogs.com/candy-Yao/p/7487983.html