用于PHP输入按钮的CSS样式

我得到了一个工作表单并试图添加样式到按钮。我在顶部添加了CSS，并声明了按钮类，但它不会设计样式。 CSS在顶部的html标签中声明，并且php代码嵌入在其中。类是相同的。任何想法为什么？先谢谢了。用于PHP输入按钮的CSS样式
<html> 
<head> 
<title>...</title> 
<style type=”text/css”> 

.btnsubmit { 
    color: #fff; 
    background-color: #3a7f7f; 
    border-color: #3a7f7f; 
} 

.btnsubmit:hover { 
    color: #fff; 
    background-color: #183535; 
    border-color: #183535; 
} 
</style> 
</head> 
<body> 
<?php 
$jinput = JFactory::getApplication()->input; 
if(isset($_POST['submit'])) { 
    $db = JFactory::getDbo(); 
    $query = $db->getQuery(true); 
    $user = JFactory::getUser(); 
    $userID = $user->get('id'); 
    $date = date("Y/m/d"); 
    $description = $jinput->get('description', null , null); 
    $subsection = $jinput->get('subsection', null , null); 
    $urgency = $jinput->get('urgency', null , null); 
    $status = "Waiting Attention"; 
    $columns = array('userid', 'rdate', 'description', 'area', 'subsection', 'urgency', 'status'); 
    $values = array($userID, $db->quote($date), $db->quote($description), $db->quote($selected), $db->quote($subsection), $db->quote($urgency), $db->quote($status)); 
    $query 
     ->insert($db->quoteName('#__website_issues')) 
     ->columns($db->quoteName($columns)) 
     ->values(implode(',', $values)); 
    $db->setQuery($query); 
    $db->execute(); 
    echo "<h4>Thank You! Issue Successfully Reported!"; 
} 
echo "<table style='text-align:center;text-align:center;margin-left:41%;'>"; 
echo "<tr><td><h4>Report Website Issue</h4></td></tr>"; 
echo "<tr><td><form method='post'><select name='area' onchange='this.form.submit()'> 
<option value=''>Select Website Area</option> 
<option value='General'>General</option> 
<option value='Emails'>Emails</option> 
<option value='Education'>Education</option> 
<option value='Reviews'>Reviews</option> 
<option value='Store'>Store</option> 
<option value='Toolkit'>Toolkit</option> 
<option value='Membership'>Membership</option> 
<option value='Other'>Other</option> 
</select></form> 
</td></tr>"; 
echo "<form method='post'>"; 
$selected = $jinput->get('area', null, null); 
echo "<tr><td><h5><center>Current Area Selected: $selected</center></tr></td></h5>"; 
if($selected == 'General') { 
    echo "<tr><td><input type='text' name='subsection' placeholder='Subsection'></td></tr> "; 
} 
else if($selected == 'Emails') { 
    echo "<tr><td><select name='subsection'> 
    <option value=''>Select Email System</option> 
    <option value='Notification'>Notifications</option> 
    <option value='Newsletter'>Newsletter</option> 
    <option value='Store'>Store Emails</option> 
    </select></td></tr>"; 
} 
else if($selected == 'Education') { 
    echo "<tr><td><select name='subsection'> 
    <option value=''>Select Subsection</option> 
    <option value='Lighting'>Lighting</option> 
    <option value='Sound'>Sound</option> 
    <option value='Rigging'>Rigging</option> 
    <option value='StageManagement'>Stage Management</option> 
    <option value='ConsoleTraining'>Console Training</option> 
    <option value='Tips'>Tips</option> 
    </select></td></tr>"; 
} 
else if($selected == 'Reviews') { 
    echo "<tr><td><input type='text' name='subsection' placeholder='Specific Review'></td></tr> "; 
} 
else if($selected == 'Store') { 
    echo "<tr><td><input type='text' name='subsection' placeholder='Store Area'></td></tr> "; 
} 
else if($selected == 'Toolkit') { 
    echo "<tr><td><input type='text' name='subsection' placeholder='Specific Tool'></td></tr> "; 
} 
else if($selected == 'Membership') { 
    echo "<tr><td><select name='subsection'> 
    <option value=''>Select Membership Plan</option> 
    <option value='Member'>Member</option> 
    <option value='Student'>Student</option> 
    <option value='Educator'>Educator</option> 
    </select></td></tr>"; 
} 
else if($selected == 'Other') { 
    echo "<tr><td><input type='text' name='subsection' placeholder='Subsection'></td></tr> "; 
} 
echo "<tr><td><select name='urgency'> 
<option value=''>Select Urgency</option> 
<option value='Minor'>Minor</option> 
<option value='Serious'>Serious</option> 
<option value='Urgent'>Urgent</option> 
</select></td></tr>"; 
echo "<tr><td><textarea rows='6' cols='50' name='description' placeholder='Please Describe The Issue'></textarea></td></tr>"; 
// Submit 
echo "<tr><td><input type='submit' class='btnsubmit' name='submit' value='Submit Issue'>"; 
echo "</form></table><hr>"; 
?> 
</body> 
</html>
来源
2015-11-24 BConstable
这是卷曲引用''style type =“text/css”>'看到那些'“”'？将它改为'