发表于： 2018-10-10 22:40:42
1 648
今天完成的事情：（一定要写非常细致的内容，比如说学会了盒子模型，了解了Margin）
看了下关于自媒体查询的东西
明天计划的事情：（一定要写非常细致的内容）
计划继续完成任务
遇到的问题：（遇到什么困难，怎么解决的）
关于自媒体查询，如何去进行进一步的设置问题
收获：（通过今天的学习，学到了什么知识）
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
<style>
body {
background-color:lightgreen;
}
@media screen and (max-width: 300px) {
body {
background-color:lightblue;
}
}
</style>
</head>
<body>
<p>重置浏览器查看大小。当浏览器窗口的宽度小于 300 像素时，背景颜色会变成淡蓝，否则是淡绿色。<input type="button" onclick="resize_window()" value="查看效果"></p>
<SCRIPT>
<!--
function resize_window() {
window.open ('http://www.w3cschool.cc/try/demo_source/trycss3_media_example1.htm','newwindow','height=299,width=299,top=0,left=0,toolbar=no,menubar=no,scrollbars=no, resizable=no,location=no, status=no')
}
//写成一行
-->
</SCRIPT>
</body>
</html>
定义和使用
使用 @media 查询，你可以针对不同的媒体类型定义不同的样式。
@media 可以针对不同的屏幕尺寸设置不同的样式，特别是如果你需要设置设计响应式的页面，@media 是非常有用的。
当你重置浏览器大小的过程中，页面也会根据浏览器的宽度和高度重新渲染页面。
<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="width=device-width, initial-scale=1.0"/>
<style>
body {
font-family:"Lucida Sans", Verdana, sans-serif;
}
.main img {
width:100%;
}
h1{
font-size:1.625em;
}
h2{
font-size:1.375em;
}
.header {
padding:1.0121457489878542510121457489879%;
background-color:#f1f1f1;
border:1px solid #e9e9e9;
}
.menuitem {
margin:4.310344827586206896551724137931%;
margin-left:0;
margin-top:0;
padding:4.310344827586206896551724137931%;
border-bottom:1px solid #e9e9e9;
cursor:pointer;
}
.main {
padding:2.0661157024793388429752066115702%;
}
.right {
padding:4.310344827586206896551724137931%;
background-color:#CDF0F6;
}
.footer {
padding:1.0121457489878542510121457489879%;
text-align:center;
background-color:#f1f1f1;
border:1px solid #e9e9e9;
font-size:0.625em;
}
.gridcontainer {
width:100%;
}
.gridwrapper {
overflow:hidden;
}
.gridbox {
margin-bottom:2.0242914979757085020242914979757%;
margin-right: 2.0242914979757085020242914979757%;
float:left;
}
.gridheader {
width:100%;
}
.gridmenu {
width:23.481781376518218623481781376518%;
}
.gridmain {
width:48.987854251012145748987854251012%;
}
.gridright {
width:23.481781376518218623481781376518%;
margin-right:0;
}
.gridfooter {
width:100%;
margin-bottom:0;
}
@media only screen and (max-width: 500px) {
.gridmenu {
width:100%;
}
.menuitem {
margin:1.0121457489878542510121457489879%;
padding:1.0121457489878542510121457489879%;
}
.gridmain {
width:100%;
}
.main {
padding:1.0121457489878542510121457489879%;
}
.gridright {
width:100%;
}
.right {
padding:1.0121457489878542510121457489879%;
}
.gridbox {
margin-right:0;
float:left;
}
}
</style>
</head>
<body>
<div class="gridcontainer">
<div class="gridwrapper">
<div class="gridbox gridheader">
<div class="header">
<h1>The Pulpit Rock</h1>
</div>
</div>
<div class="gridbox gridmenu">
<div class="menuitem">The Drive</div>
<div class="menuitem">The Walk</div>
<div class="menuitem">The Return</div>
<div class="menuitem">The End</div>
</div>
<div class="gridbox gridmain">
<div class="main">
<h1>The Walk</h1>
<p>The walk to the Pulpit Rock will take you approximately two hours, give or take an hour depending on the weather conditions and your physical shape.</p>
<img src="pulpitrock.jpg" alt="Pulpit rock" width="" height="">
</div>
</div>
<div class="gridbox gridright">
<div class="right">
<h2>What?</h2>
<p>The Pulpit Rock is a part of a mountain that looks like a pulpit.</p>
<h2>Where?</h2>
<p>The Pulpit Rock is in Norway</p>
<h2>Price?</h2>
<p>The walk is free!</p>
</div>
</div>
<div class="gridbox gridfooter">
<div class="footer">
<p>This web page is a part of a demonstration of fluid web design made by www.w3schools.com. Resize the browser window to see the content response to the resizing.</p>
</div>
</div>
</div>
</div>
</body>
</html>
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