login.html
我们在此页面对我们的<form>表单内容做了JS判断
对<form>表单做了css布局
放入了我们 yanzhengma.php，验证码文件
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>登陆界面</title>
<script type="text/javascript">
function foo(){
if(myform.name.value=="")
{
alert("请输入用户名");
myform.name.focus();
return false;
}
if (myform.pwd.value=="")
{
alert("请输入密码");
myform.pwd.focus();
return false;
}
if (myform.yzm.value=="")
{
alert("请输入验证码");
myform.yzm.focus();
return false;
}
}
</script>
<style type="text/css">
body{background-image: url("/images/1.jpg")}
.container{
width: 380px;
height: 330px;
margin: 0 auto;margin-top: 240px;
box-shadow: 0 0 20px #222;
border-radius:40px;
background-color: rgba(152, 242, 242, 0.23);
}
div.right{
position: relative;
left: 40px;
top: 20px;
}
input{
width: 180px;
height: 25px;
}
button{
background-color: rgba(230, 228, 236, 0.93); /* Green */
border: none;
color: #110c0f;
padding: 10px 30px;
text-align: center;
display: inline-block;
font-size: 16px;
margin-top: -40px;
margin-left: 50px;
cursor: pointer;
}
</style>
</head>
<body>
<form action="login.php" method="post" onsubmit="return foo();" name="myform" >
<div class="container"style="font-size:17px">
<div class="right">
<h2>用户登陆</h2>
<p>
用户名:<input type="text" name="username" id="name" placeholder="请输入用户名">
</p>
<p>
密　码:<input type="password" name="password" id="pwd" placeholder="请输入密码" >
</p>
<p>
验证码:<input type="text" name="yzm" id="yzm" placeholder="请输入验证码">
<img src="yanzhengma.php" onClick="this.src='yanzhengma.php?nocache='+Math.random()" style="cursor:hand">
</p>
<p style=" margin-left: 200px"><a href="reg.html">注册</a></p>
<p>
<button class="button">立即登陆</button>
</p>
</div>
</div>
</form>
</body>
</html>