html - CSS背景和登录框错误

Question

• 问题 1:我的底部有一个空白区域，但我无法找出我的 css 文件中的问题。我正在使用 chrome，它在 IE 上没有问题。请帮忙。

• 问题2:错误消息 block 的底部无法正确显示。它应该像图形一样圆润。我对 css 文件的不同部分进行了分组。在登录组里

登录页面CSS样式表:

body {
padding: 50px;
margin: 50px;
background: url(../images/bg.jpg) repeat;
text-align: center;
font-family: Helvetica, Arial, sans-serif;
}

div, ul, li, h1, h2, h3, h4, h5 {
margin: 0;
padding: 0;
}

a {
color: #fff;
text-decoration: none;
}

a:hover {
text-decoration: underline;
}

h1 {
font-weight: normal;
text-align: center;
}

div.clear {
clear: both;
height: 1px;
line-height: 1px;
font-size: 1px;
}

/* ***************************
       Layout
**************************** */

div#wrapper {
text-align: left;
margin: 0 auto;
width: 960px;
}


/* ***************************
       Header
**************************** */

div#header {
position: relative;
height: 1%;
margin-bottom: 20px;
padding: 30px 30px 0 30px;
}

div#header h1 {
text-align: left;
}
div#header h1 a, div#header h1 span {
background: url(../images/survs_logo_01.gif) bottom left no-repeat;
display: block;
width: 270px;
padding-top: 10px;
text-indent: -9999px;
overflow: hidden;
outline: none;
}

div#header ul {
position: absolute;
right: 30px;
bottom: -5px;
}
div#header ul li {
float: left;
list-style: none;
font-weight: bold;
}
div#header ul li a {
color: #666;
display: block;
padding: 7px 7px 7px 7px;
margin: 0 0.5em;
font-size: 14px;
outline: none;
font-family: Arial, sans-serif; /* fixes ff mac 1px helvetica line height problem > http://archivist.incutio.com/viewlist/css-discuss/96327 */
}
div#header ul li a:hover {
text-decoration: none;
background: #ececde;
}
div#header ul li a:hover span {
border-bottom: 1px dotted #999;
}

div#header ul li.login {
margin-left: 0.85em;
}
div#header ul li.login a {
display: block;
color: #fff;
font-size: 14px;
background: url(../images/login_01.gif) bottom left no-repeat;
margin: 0;
text-align: center;
cursor: pointer;
width: 66px;
padding: 6px 0 6px 0; 
}
div#header ul li.login a:hover {
background: url(../images/login_01.gif) bottom left no-repeat;
}
div#header ul li.login a:hover span {
border: none;
}

div#header ul li.selected a span {
border-bottom: 1px dotted #666;
}





/* ***************************
       Content
**************************** */

div#content {
padding: 20px 30px 20px 30px;
color: #515348;
font-size: 76%;
line-height: 1.6em;
height: 1%;
background: #f5f5ef;
}

body.home div#content {
background: #f5f5ef url(../images/content_grad_01.gif) top left repeat-x;
}


div#content a {
color: #36808e;
border-bottom: 1px solid #d0e8e7;
}
div#content a:hover {
background: #deefee;
text-decoration: none;
}


div#topcorners {
background: #333;
height: 10px;
width: 940px;
margin: 0 auto;
position: relative;
}
div#topcorners div.cleft {
position: absolute;
width: 10px;
height: 10px;
background: #333 url(../images/content_corner_sprite2_01.gif) 0px 0px no-repeat;
top: 0;
left: -10px;
}
div#topcorners div.cright {
position: absolute;
width: 10px;
height: 10px;
background: #333 url(../images/content_corner_sprite2_01.gif) -12px 0px no-repeat;
top: 0;
right: -10px;
}

div#bottomcorners {
background: #f5f5ef;
height: 10px;
width: 940px;
margin: 0 auto;
position: relative;
}
div#bottomcorners div.cleft {
position: absolute;
width: 10px;
height: 10px;
background: url(../images/content_corner_sprite2_01.gif) 0px -12px no-repeat;
top: 0;
left: -10px;
}
div#bottomcorners div.cright {
position: absolute;
width: 10px;
height: 10px;
background: url(../images/content_corner_sprite2_01.gif) -12px -12px no-repeat;
top: 0;
right: -10px;
}





/* ***************************
     Groups
**************************** */

div.groupscontainer {
/*margin: 20px -30px 25px -30px;*/
margin: 20px 0 25px 0;
padding: 0px 5px 0 0;
/* border-bottom: 1px solid #E3E3CF; */
border-top: 3px solid #E3E3CF;
background: #f5f5ef url(../images/content_grad_02.gif) 10px -60px repeat-x;
}

div#content div.groups {
float: left;
width: 208px;
margin-top: 10px;
font-size: 11px;
}

div#content div.groups h4 {
font-size: 14px;
}
div#content div.groups p {
margin: 7px 0 10px 0;
color: #717364;
}
div#content div.groups ul {
padding-left: 15px;
color: #717364;
color: #5e8a33;
}
div#content div.groups ul li span {
color: #717364;
}

div#groups1 {
margin-left: 11px;
/*margin-left: 30px;*/
padding-right: 5px;
border-right: 1px dotted #DADABE;
}
div#groups2 {
margin-left: 11px;
padding-right: 5px;
border-right: 1px dotted #DADABE;
}
div#groups3 {
margin-left: 11px;
padding-right: 5px;
border-right: 1px dotted #DADABE;
}
div#groups4 {
margin-left: 11px;
padding-right: 0px;
border-right: none;
}



/* ***************************
       Footer
**************************** */


div#footer {
color: #808372;
text-align: center;
font-size: 12px;
margin: 25px 0 30px 0;
}
div#footer p {
margin-bottom: 1.5em;
}
div#footer a {
color: #808372;
border-bottom: 1px solid #cca;
padding: 0;
}
div#footer a:hover {
text-decoration: none;
}
div#footer span {
padding: 0 3px;
color: #aa8;
}




/* ***************************
       Login
**************************** */

body.login div#wrapper { width: 420px; }
body.login div#topcorners { width: 400px; }
body.login div#bottomcorners { width: 400px; }
body.login div#header h1 a { width: 360px; /* 420 - 30 - 30 */ }

body.error div#wrapper { width: 480px; }
body.error div#topcorners { width: 460px; }
body.error div#bottomcorners { width: 460px; }
body.error div#header h1 a { width: 420px; /* 480 - 30 - 30 */ }

body.forgot div#wrapper { width: 420px; }
body.forgot div#topcorners { width: 400px; }
body.forgot div#bottomcorners { width: 400px; }
body.forgot div#header h1 a { width: 360px; /* 420 - 30 - 30 */ }

body.optin div#wrapper { width: 420px; }
body.optin div#topcorners { width: 400px; }
body.optin div#bottomcorners { width: 400px; }
body.optin div#header h1 a { width: 360px; /* 420 - 30 - 30 */ }

body.optout div#wrapper { width: 420px; }
body.optout div#topcorners { width: 400px; }
body.optout div#bottomcorners { width: 400px; }
body.optout div#header h1 a { width: 360px; /* 420 - 30 - 30 */ }

body.processing div#wrapper { width: 420px; }
body.processing div#topcorners { width: 400px; }
body.processing div#bottomcorners { width: 400px; }
body.processing div#header h1 span { width: 360px; /* 420 - 30 - 30 */ }

body.activation div#wrapper { width: 420px; }
body.activation div#topcorners { width: 400px; }
body.activation div#bottomcorners { width: 400px; }
body.activation div#header h1 a { width: 360px; /* 420 - 30 - 30 */ }

body.charge div#wrapper { width: 480px; }
body.charge div#topcorners { width: 460px; }
body.charge div#bottomcorners { width: 460px; }
body.charge div#header h1 a { width: 420px; /* 480 - 30 - 30 */ }

body.landing div#wrapper { width: 580px; }
body.landing div#topcorners { width: 560px; }
body.landing div#bottomcorners { width: 560px; }
body.landing div#header h1 a { width: 520px; /* 480 - 30 - 30 */ }

body.google div#wrapper { width: 480px; }
body.google div#topcorners { width: 460px; }
body.google div#bottomcorners { width: 460px; }
body.google div#header h1 a { width: 420px; /* 480 - 30 - 30 */ }


body.small div#wrapper {
text-align: left;
margin: 0 auto;
}
body.small div#header {
margin-bottom: 20px;
padding: 30px 0 0 0;
}
body.small div#header h1 {
margin: 0 30px;
}
body.small div#header h1 a {
background: url(../images/logo.png) bottom center no-repeat;
padding-top: 200px;
}
body.small div#header h1 span {
background: url(../images/logo.png) bottom center no-repeat;
padding-top: 100px;
}
body.small div#content {
padding: 15px 30px 10px 30px;
}


body.small div#content input.inputtext {
width: 240px;
}



body.small div#topcorners {
background: #f5f5ef;
height: 10px;
margin: 0 auto;
position: relative;
}
body.small div#topcorners div.cleft {
position: absolute;
width: 10px;
height: 10px;
background: url(../images/content_corner_sprite1_01.gif) 0px 0px no-repeat;
top: 0;
left: -10px;
}
body.small div#topcorners div.cright {
position: absolute;
width: 10px;
height: 10px;
background: url(../images/content_corner_sprite1_01.gif) -12px 0px no-repeat;
top: 0;
right: -10px;
}

body.small div#bottomcorners {
background: #f5f5ef;
height: 10px;
margin: 0 auto;
position: relative;
}
body.small div#bottomcorners div.cleft {
position: absolute;
width: 10px;
height: 10px;
background: url(../images/content_corner_sprite1_01.gif) 0px -12px no-repeat;
top: 0;
left: -10px;
}
body.small div#bottomcorners div.cright {
position: absolute;
width: 10px;
height: 10px;
background: url(../images/content_corner_sprite1_01.gif) -12px -12px no-repeat;
top: 0;
right: -10px;
}


body.small div#content h2 {
font-size: 18px;
}
body.small div#content a {
color: #36808e;
border-bottom: 1px solid #d0e8e7;
}
body.small div#content a:hover {
background: #deefee;
text-decoration: none;
}


body.error div#content h2 {
margin-bottom: 0.5em;
line-height: 1.5em;
}
body.error div#content p {
margin: 0.25em 0;
}
body.processing div#header {
display: none;
}
body.processing div#container {
margin-top: 80px;
}
body.processing div#content {
text-align: center;
}
body.processing div#content h2 {
margin-bottom: 0.6em;
}
body.processing div#content div.error {
margin-top: 0;
}
body.processing div#content img {
margin: 0 0 0.75em 0;
}
body.processing div#content p {
margin: 0.25em 0 1.25em 0;
}


body.activation h2 img {
margin: 0 !important;
padding: 0 !important;
}

table.login {
margin: 5px 0;
}
table.login th {
padding: 0.5em 1em 0.5em 0;
vertical-align: top;
text-align: right;
}
table.login td {
}
table.login input.inputtext {
width: 250px;
color: #515348;
}
table.login select {
padding: 3px;
color: #515348;
}
table.login tr td.separator {
padding: 10px 0 10px 0;
}
table.login tr td.separator div {
border-top: 1px dotted #bbb;
height: 0;
line-height: 0;
font-size: 0;
}
table.login span.tipinline {
font-size: 0.9em;
color: #777;
}

body.login div.error, body.login div.success {
margin: 0 0 5px 0;
text-align: center;
}




/* ***************************
       General
**************************** */

input.inputtext {
padding: 3px;
/* border: 1px solid #7f9db9; */
}



/* ***************************
       Misc
**************************** */

.mtop3 { margin-top: 3em !important; }
.mtop2 { margin-top: 2em !important; }
.mtop15 { margin-top: 1.5em !important; }
.mtop1 { margin-top: 1em !important; }
.mtop05 { margin-top: 0.5em !important; }
.mtop025 { margin-top: 0.25em !important; }
.mtop0 { margin-top: 0 !important; }
.mbottom3 { margin-bottom: 3em !important; }
.mbottom2 { margin-bottom: 2em !important; }
.mbottom15 { margin-bottom: 1.5em !important; }
.mbottom1 { margin-bottom: 1em !important; }
.mbottom075 { margin-bottom: 0.75em !important; }
.mbottom05 { margin-bottom: 0.5em !important; }
.mbottom025 { margin-bottom: 0.25em !important; }
.mbottom0 { margin-bottom: 0 !important; }
.mvert2 { margin: 2em 0 !important; }
.mvert15 { margin-top: 1.5em !important; margin-bottom: 1.5em !important; }
.mvert1 { margin-top: 1em !important; margin-bottom: 1em !important; }
.mvert075 { margin-top: 0.75em !important; margin-bottom: 0.75em !important; }
.mvert05 { margin-top: 0.5em !important; margin-bottom: 0.5em !important; }
.mvert025 { margin-top: 0.25em !important; margin-bottom: 0.25em !important; }
.mvert0 { margin-top: 0 !important; margin-bottom: 0 !important; }

.aleft { text-align: left !important; }
.acenter { text-align: center !important; }

.highlight1 { background: #ffa;}

登录页面html代码:

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
    <head>
        <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
        <meta name="author" content="3mail" />
        <meta name="description" content="3mail - an free email tools for non-profit organization and institution" />
        <title>3Mail - Login</title>
        <link rel="stylesheet" type="text/css" href="style/home.css"/>
</script>
</head>

    <body class="small login">
    <div id="wrapper">
    <div id="header"><h1><a href="index.php">3mail - an free email tools for non-profit organization and institution</a></h1></div>
    <div class="container">
        <div id="topcorners"><div class="cleft"></div><div class="cright"></div></div>
        <div id="content">
<?
if(isset($_POST['login'])){
   /* Check that all fields were typed in */
   if(!$_POST['user'] || !$_POST['pass']){
      die('You didn\'t fill in a required field.');
   }


   /* Checks that username is in database and password is correct */
   $md5pass = md5($_POST['pass']);
   $result = confirmUser($_POST['user'], $md5pass);

   /* Check error codes */
   if($result == 1){
      die('Authentication failure, please contact administrator if you forget login information.');
   }

      /* Username and password correct, register session variables */
   $_POST['user'] = stripslashes($_POST['user']);
   $_SESSION['username'] = $_POST['user'];
   $_SESSION['password'] = $md5pass;

    header('Location:main.php');

   /**
    * This is the cool part: the user has requested that we remember that
    * he's logged in, so we set two cookies. One to hold his username,
    * and one to hold his md5 encrypted password. We set them both to
    * expire in 100 days. Now, next time he comes to our site, we will
    * log him in automatically.
    */
   if(isset($_POST['remember'])){
      setcookie("cookname", $_SESSION['username'], time()+60*60*24*100, "/");
      setcookie("cookpass", $_SESSION['password'], time()+60*60*24*100, "/");
   }

   /* Quick self-redirect to avoid resending data on refresh */
   echo "<meta http-equiv=\"Refresh\" content=\"0;url=$HTTP_SERVER_VARS[PHP_SELF]\">";
   return;
}

/* Sets the value of the logged_in variable, which can be used in your code */
$logged_in = checkLogin();
?>
                <form name="signIn" method="post" action="index.php">
                    <table class="login" style="margin-left: auto; margin-right: auto;">
                        <tr>
                            <td><p class="mtop0 mbottom025"><strong><label for="email">Username</label></strong></p><input tabindex="1" class="inputtext" type="text" name="user" id="user" /></td>
                        </tr>
                        <tr>
                            <td><p class="mtop05 mbottom025"><strong><label for="password">Password</label></strong></p><input tabindex="2" class="inputtext" type="password" name="pass" id="pass" /></td>
                        </tr>

                        <tr>
                            <td>
                            <p class="mtop025 mbottom0"><a href="mailto:systemAdmin@mail.com">Forgot password?</a>
                            </p></td> 
                        </tr>
                        <tr>
                            <td><p class="mtop025 mbottom0"><input type="checkbox" name="remember" id="remember" tabindex="3"/> <label for="rememberMe">Remember me</label></p></td>
                        </tr>

                        <tr>
                            <td style="padding-top: 10px;"><input class="bprimarypub80" type="submit" name="login" tabindex="4" value="Login" /></td>
                        </tr>
                    </table>
                </form>


        </div>
        <div id="bottomcorners"><div class="cleft"></div><div class="cright"></div></div>
    </div>
</div>
        <div id="footer">
    <p>Copyright &copy; 2011 <a href="index.php">3Mail</a>. All rights reserved.</p>
</div>


    </body>
</html>

Answer 1

问题 1:正如已经指出的那样，您的背景图片不够高。继续前进。

问题 2:原因是你使用了die()来输出错误信息。

/* Check that all fields were typed in */
if(!$_POST['user'] || !$_POST['pass']){
    die('You didn\'t fill in a required field.');
}

调用 die() 会终止 PHP 脚本，并且不会再向输出写入任何内容，甚至静态 HTML 也不行。这会导致 HTML 文件被截断， block 的底线根本不存在，页脚也不存在。