谷歌和pingdom.com说我应该"指定一个变化:接受编码标题"
我不知道或不了解如何做到这一点.谁能解释它是什么以及它有什么作用？
我不断得到不需要的上边距,不能删除它,我尝试了一切,这也影响了我的其他项目之一,可以找到任何解决方案.请帮助我的html:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Joy The Designert</title>
<link href="style1.css" rel="stylesheet" type="text/css" />
</head>
<body topmargin=0 marginheight=0>
<div id="Wrapper">
<div id="topBanner"><div class="container"><h2>top banner content</h2></div></div>
<div id="nav"><div class="container">Navigation Text<?include ("navigation.php");?></div></div>
<div id="featured"><div class="container"></div></div>
<div id="info"><div class="container">test</div></div>
<div id="support"><div class="container">test</div></div>
<div id="footer"><div class="container">testing footer<?include ("footer.php");?></div></div>
</div>
</body>
</html>
并且我的css内容:
@charset "utf-8";
/* CSS Document */
html {
margin:!important 0px;
padding:0px;
}
body {
margin-top:!important 0px;
margin-left:0px;
margin-right:0px;
margin-botton:0px;
padding:0px;
border:none; …我查看了堆栈溢出的多种解决方案，但没有一个有效。
当我单击该按钮时，它会将我带到一个新的 URL yoursite.com/index.html?message=blah&pass=12
我希望它保持在同一页面，只执行我写的脚本。
请帮忙
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Simple Encryption Using Caesar</title>
<link rel="stylesheet" href="https://unpkg.com/marx-css/css/marx.min.css">
<style>
.hidden{
visibility: hidden;
}
</style>
<script src="encrypt.js"></script>
</head>
<body>
<main>
<h2>What is this?</h2>
<p>This application was built to <b>encrypt</b> data using the <b>Caesar method.</b>
All encryption is handled on <i>client side</i> in order to garuntee <b>data integrity.</b> </p>
<form onsubmit=" event.preventDefault; doStuff(); ">
<h5>Insert some text in the following box:</h5> <br>
<textarea id="userText" name="message" cols="30" rows="10" placeholder="Your secret message" autofocus></textarea> …