我正在学习如何在编码响应HTML电子邮件的过程中使用媒体查询，并且正在挣扎。我在Really Good Emails（http://email.reallygoodemails.com/t/ViewEmail/i/5F9007F241DBA1802540EF23F30FEDED/5F41B898D731AECE2A1BF84ACBDD178B）上找到了一个不错的电子邮件模板，并尝试从头开始编写代码。我能够获得桌面版本，但是在添加媒体查询时，我无法使中间部分（.button）遵守最大宽度100％。
我在这里做错了什么？我敢肯定，其他人也在为此苦苦挣扎。我尝试使用在Litmus上阅读的仅表方法。
下面的HTML。
<!DOCTYPE html>
<html lang="en" dir="ltr">
<head>
<meta charset="utf-8">
<title>Really Good Emails</title>
<style type="text/css">
body {
background-color:#f7f7f7;
color:#5f5f5f;
font-family: Roboto,Tahoma,sans-serif;
}
h1 {
color:#404040;
}
.header {
background-image: url("http://i1.createsend1.com/ei/i/53/DC3/DE5/174640/csfinal/email-background2.jpg");
border-spacing: 0px;
border-collapse: collapse;
padding-bottom:0px;
}
a {
text-decoration:none;
display: block;
}
.btn {
opacity:1;
}
.btn:hover {
opacity:.8;
}
@media only screen and (max-width:510px) {
body {max-width: 100% !important;padding:0 !important;margin:0 !important;}
.header {max-width: 100% !important; padding:0 !important;margin:0 !important;}
.header img {width:300px !important;height:auto !important;}
.friday {max-width:100% !important;display:flex;align-items: center;}
.friday img {max-width:100% !important;height:auto !important;}
.advertise img {max-width:100% !important;height:auto !important;}
.buttons span {max-width: 100% !important;padding: 5px !important;}
.buttonsintro {max-width:100% !important;}
.buttons {max-width:100% !important;}
.buttons a {max-width:100% !important; padding: 10px 5px 10px 5px !important;}
.buttons h1,p {max-width:100% !important; padding: 10px 5px 10px 5px !important}
.advertise {max-width:100% !important;}
.friday h1 {padding: 0 0 0 15px !important;}
.curved {display:none !important;}
p {font-size:1rem !important;}
td {max-width: 100% !important;}
.footer {max-width: 100% !important;padding:5px 10px 0px 10px !important;}
.footer p {font-size:.8rem !important;}
.cliff1 {max-width:100% !important;}
.cliff2 {max-width:100% !important;display:block !important;}
.cliff2 td {margin:0px !important;}
.space {display:none !important;}
}
</style>
</head>
<body>
<table class="header" width="100%" bgcolor="#fe4c44" cellspacing="0" cellpadding="0">
<tr>
<td style="padding: 25px 0 25px 0; display:block;" align="center">
<a href="https://reallygoodemails.com/?utm_campaign=complete-your-profile&utm_source=ReallyGoodEmails&utm_medium=email">
<img style="display:block;" width="600px" height="64px" alt="Really Good Emails" src="http://i1.createsend1.com/ei/i/53/DC3/DE5/174640/csfinal/header_RGE-logo-9900000000079e3c.png">
</a>
</td>
</tr>
<tr>
<td style="width:600px;" align="center">
<img class="curved" style="display:block; max-width:600px;" width="600px" height="32px" src="http://i2.createsend1.com/ei/i/53/DC3/DE5/174640/csfinal/top-rounded3-9900000000079e3c.png">
</td>
</tr>
</table>
<table class="friday" align="center" width="600px" bgcolor="white">
<tr>
<td align="center" color="#5f5f5f;"><img width="560px" height="398px" alt="Feedback Friday"
src="http://i3.createsend1.com/ei/i/53/DC3/DE5/174640/csfinal/feedback-compressed-9900000000079e3c.png">
<h1 style="font-family: Roboto,Tahoma,sans-serif; font-size:1.5rem; line-height:30px;padding:0 15px 0 15px;color:#5f5f5f;" align="left">Template Eyes</h1>
<p style="padding:0 15px 0 15px; line-height:25px;font-size:1.2rem;" color="#5f5f5f;" align="left">Not all pre-built email templates are created equal. Some are born with looks so dreamy that you hardly need to change a thing. Others, as we will see in today's Feedback Friday, may need some work done on them but can walk a line of being overdone - kind of like a movie star who gets too much plastic surgery.
</p>
<p style="padding:0 15px 0 15px; line-height:25px;font-size:1.2rem;" color="#5f5f5f;" align="left">This week we jump into a recently submitted B2B email to discuss where you can go wrong in those kinds of scenarios. (For clarity, we are talking about email template scenarios, not plastic surgery scenarios.)
</p>
</td>
</tr>
<tr>
<td>
<a style="color:white; text-decoration: none;" href="https://www.fadavis.com"><table class="btn" style="margin-top:25px; margin-left:15px; border-radius:5px;" align="left" bgcolor="#fe4c44">
<tr>
<td style="color:white;padding:10px 15px 10px 15px; font-size:.81rem; line-height:25px;" align="center">
<strong>BE WISE & CUSTOMIZE</strong>
</td>
</tr>
</table></a>
</td>
</tr>
<tr>
<td>
<img alt="bottom border of image" width="600px" src="http://i4.createsend1.com/ei/i/53/DC3/DE5/174640/csfinal/rounded-bottom_articles-fancy1-9900000000079e3c.png">
</img>
</td>
</tr>
</table>
<table class="advertise" align="center" width="600px" bgcolor="#f7f7f7">
<tr>
<td style="padding:20px 0 20px 0; font-size:.7rem;" align="center">This email is supported by:</td>
</tr>
<tr>
<td class="advertise" style="padding-bottom:35px;" align="center"><img width="560px" src="http://i5.createsend1.com/ei/i/53/DC3/DE5/174640/csfinal/ReallyGoodEmail_Banner_Animation_BlueBG_V1_L1R5-9900000000079e3c.gif">
</td>
</tr>
</table>
<table class="buttonsintro" align="center" width="600px" bgcolor="white">
<tr>
<td>
<h1 style="font-family: Roboto,Tahoma,sans-serif; font-size:1.5rem; line-height:30px;padding:0 15px 0 15px;color:#5f5f5f;" align="left">
Inspiring Stuff</h1>
<p style="padding:0 15px 0 15px; line-height:25px;font-size:1.2rem;" color="#5f5f5f;" align="left">
Here's what got us up in a state of mind surfing this week:</p>
</td>
</tr>
</table>
<table class="buttons" align="center" width="600px" bgcolor="white">
<tr>
<td class="btn" align="center"style="border-radius: 3px;" bgcolor="white">
<span><a href="https://litmus.com"
target="_blank" style="font-size: .8rem; color: black;padding: 12px 18px;
text-decoration: none; text-decoration: none;border-radius: 3px;
border: 1px solid red;">
<strong> SHOULD BUTTONS BE ROUNDED OR SQUARE?</strong></a></span></td>
</tr>
<tr>
<td style="line-height:15px;"> </td>
</tr>
<tr>
<td class="btn" align="center" style="border-radius: 3px;" bgcolor="white">
<span><a href="https://litmus.com" target="_blank" style="font-size: .8rem; color: black;
text-decoration: none; text-decoration: none;border-radius: 3px;
padding: 12px 18px; border: 1px solid red;display: inline-block;">
<strong>⬛ WHAT'S THIS GONNA LOOK LIKE IN DARK MODE?</strong></a></span>
</td>
</tr>
<tr>
<td style="line-height:15px;"> </td>
</tr>
<tr>
<td align="center" style="margin-bottom:25px; border-radius: 3px;" bgcolor="white">
<a href="https://litmus.com" target="_blank" style="font-size: .8rem; color: black;
text-decoration: none; text-decoration: none;border-radius: 3px;
padding: 12px 18px; border: 1px solid red; display: inline-block;">
<strong> THE DESIGN SPRINT CHALLENGE OF NICK BRITO</strong></a>
</td>
</tr>
<tr>
<td style="line-height:15px;"> </td>
</tr>
<tr>
<td align="center" style="border-radius: 3px;" bgcolor="white"><a href="https://litmus.com"
target="_blank" style="font-size: .8rem; color: black;
text-decoration: none; text-decoration: none;border-radius: 3px;
padding: 12px 18px; border: 1px solid red; display: inline-block;"><strong> PRESENTING CONFLICTING OPTIONS IN EMAIL</strong></a>
</td>
</tr>
<tr>
<td style="line-height:15px;"> </td>
</tr>
<tr>
<td align="center" style="border-radius: 3px;" bgcolor="white"><a href="https://litmus.com" target="_blank" style="font-size: .8rem; color: black;
text-decoration: none; text-decoration: none;border-radius: 3px;
padding: 12px 18px; border: 1px solid red; max-width:80%; display: inline-block;"><strong> COLORFUL GRADIENT CARDS</strong></a>
</td>
</tr>
<tr>
<td style="line-height:15px;"> </td>
</tr>
<tr>
<td>
<img alt="bottom border of image" width="600px"
src="http://i4.createsend1.com/ei/i/53/DC3/DE5/174640/csfinal/rounded-bottom_articles-fancy1-9900000000079e3c.png">
</img>
</td>
</tr>
</table>
<table class="cliff1" align="center" style="width:600px;" bgcolor="#f7f7f7">
<tr>
<td>
<h2 style="padding:0 15px 0 15px; line-height:25px;font-size:1.2rem;" color="#5f5f5f;" align="center">Follow Us off the Cliff</h2>
<p style="padding:0 15px 0 15px; line-height:25px;font-size:1rem;" color="#5f5f5f;" align="center">
We know what your mother said. If Really Good Emails jumped off a cliff would you go with them? Yes, of course you would. Don’t be silly.</p>
</td>
</tr>
</table>
<table class="cliff2" align="center" style="width:600px;" bgcolor="#f7f7f7">
<tr>
<td align="center" style="padding: 15px 10px 15px 10px; border-radius: 4px;" bgcolor="#38A1F3">
<span><a href="#" target="_blank" style="font-size: .8rem; color: white;
text-decoration: none; text-decoration: none;border-radius:4px; display: inline"><strong>TWITTER</strong></a></span>
</td>
<td class="space" style="min-width:20px;"> </td>
<td align="center" style="padding: 15px 10px 15px 10px;border-radius: 4px;" bgcolor="#C92228">
<span><a href="#" target="_blank" style="font-size: .8rem; color: white;
text-decoration: none; text-decoration: none;border-radius: 4px; display: inline"><strong>PINTEREST</strong></a></span>
</td>
<td class="space" style="min-width:20px;"> </td>
<td align="center" style="padding: 15px 10px 15px 10px; border-radius: 4px;" bgcolor="black">
<span><a href="#" target="_blank" style="font-size: .8rem; color: white;
text-decoration: none; text-decoration: none;border-radius: 4px;
display: inline"><strong>CODEPEN</strong></a></span>
</td>
<tr>
<td class="space" style="line-height:30px;"> </td>
</tr>
</table>
<table style="padding: 25px 0 25px 0" align="center" width="100%" bgcolor="white">
<tr>
<td align="center">
<h3>Design Better. Spam Never.</h3>
<p>Update Subscription - Articles & Interviews - Free Resources - View Online</p>
</td>
</table>
<table class="footer" align="center" style="width:600px;" bgcolor="#f7f7f7">
<tr>
<td style="color:#9a9ca0; font-size:.7rem; line-height:20px;padding-top:20px;"><p>We sent this email to you because of your insatiable thirst for email inspiration that does not make your eyes burn
like you were thrown into a lake of sliced raw onions—ugh, the worst.</p>
<p style="padding-top:10px;">All this shiznit is © Really Good Emails 2018. All these images belong to us and our moms all said this is
one instance where we don't have to share if we don't want to. All the emails apparently still belong to the
individual companies, we just sort of "web photographed" them when they put them in our email inbox. </p>
<p style="padding-top:10px;">If you want to send us gifts, fan mail, or anything that does not include stalking or us waking up with you in our
living room—you can find us at 1040 W Washington St, Greenville, SC, USA 29601</p>
<p style="padding-top:10px;">Or, if you're just tired of hearing from us, you can unsubscribe too.</p></td>
</tr>
</table>
</body>
</html>
答案 0 :(得分：0)
仔细观察之后，我认为您的问题可能是您在href链接标记内有一个嵌入式表，该表对内联CSS施加了边距：
style="margin-top:25px; margin-left:15px; border-radius:5px;
左边距将阻止其填充宽度的100％。
顺便说一句-我同意J.vee的评论，即您应该始终使用移动优先概念来开发CSS。但是，由于您使用的是预先烘焙的模板，因此我猜这不是您的选择。