<>一、先上最终效果：
<>二、代码
总结构图：
<>1、index.html
<!DOCTYPE html> <html> <head> <meta charset="utf-8" /> <title>Login</title> <
link rel="stylesheet"href="./css/style.css" /> </head> <body> <form class="box"
action="index.html"method="post"> <h1>Login</h1> <input type="text"name=""
placeholder="UserName" /> <input type="password"name=""placeholder=
"UserPassword" /> <input type="submit" name="" value="Login" /> </form> </body>
</html>
<>2、style.css
body{ margin: 0; padding: 0; background-image: url(../img/桥.jpg);
background-repeat: no-repeat; background-size:100%; background-position: 0px
-50px; } .box{ width: 300px; padding: 40px; position: absolute; top: 50%; left:
50%; transform: translate(-50%,-50%); background-color: #00000068; text-align:
center; } .box input[type = "text"],.box input[type = "password"]{ border: 0;
background: none; display: block; margin: 20px auto; text-align: center; border:
2px solid #c8d6e5; padding: 14px 10px; outline: none; color: #ffffff;
border-radius: 24px; transition: 0.25s; } h1{ color: #FFFFFF; text-transform:
uppercase; font-weight: 500; } .box input[type = "text"]:focus, .box input[type
= "password"]:focus{ width: 280px; border-color: #FFFFFF; } .box input[type =
"submit"]{ border: 0; font-size: 17px; background: none; display: block; margin:
20px auto; text-align: center; border: 2px solid #FFFFFF; padding: 14px 40px;
outline: none; color: #ffffff; border-radius: 24px; transition: 0.25s; cursor:
pointer; } .box input[type = "submit"]:hover{ background-image: linear-gradient(
120deg, #e0c3fc 0%, #8ec5fc 100%); font-size: x-large; }
<>3、背景图片自取
希望帮到更多的小伙伴们~~~~~~~~~
