我有以下代码
的index.php
<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="width=device-width, initial-scale=1">
<style type="text/css">
.panel{
margin-right: 3px;
}
.button {
background-color: #4CAF50;
border: none;
color: white;
margin-right: 30%;
margin-left: 30%;
text-decoration: none;
display: block;
font-size: 16px;
cursor: pointer;
width:30%;
height:40px;
margin-top: 5px;
}
input[type=text]{
width:100%;
margin-top:5px;
}
.chat_wrapper {
width: 70%;
height:472px;
margin-right: auto;
margin-left: auto;
background: #3B5998;
border: 1px solid #999999;
padding: 10px;
font: 14px 'lucida grande',tahoma,verdana,arial,sans-serif;
}
.chat_wrapper .message_box {
background: #F7F7F7;
height:350px;
overflow: auto;
padding: 10px 10px 20px 10px; …