效果

代码
html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<link rel="stylesheet" href="baidu2.css">
<title>百度一下,你就知道</title>
</head>
<body>
<div id="header">
<ul id="header_nav">
<li><a href="">新闻</a></li>
<li><a href="">hao123</a></li>
<li><a href="">地图</a></li>
<li><a href="">视频</a></li>
<li><a href="">贴吧</a></li>
<li><a href="">学术</a></li>
<li><a href="">更多</a></li>
</ul>
<ul id="header_nav2">
<li><input type="button" value="登录" id="button1"></li>
<li><a href="">设置</a></li>
<li><a href="" id="kang">抗击肺炎</a></li>
</ul>
</div>
<div id="main">
<img src="https://www.baidu.com/img/bd_logo1.png" width="270px" height="125px" alt=""><br>
<input type="text" name="" id="" >
<input type="submit" value="百度一下">
</div>
<div id="footer">
<img src="3.jpg" alt="" >
</div>
</body>
</html>
#header{
width: 100%;
height: 50px;
}
#header_nav{
position: relative;
right: 25px;
top: -3px;
}
#header_nav li{
float: left;
margin-right: 30px;
}
#kang{
color: red;
}
a:hover{
color: blue;
}
a{
text-decoration:none;
color:#222;
font-size: 13px;
}
li{
list-style: none;
}
#header_nav2{
position: relative;
right: 30px;
}
#header_nav2 li{
float: right;
margin-left:30px ;
}
#button1{
background-color: #4e71f2;
color: white;
border: solid 1px blue;
}
#main{
width: 100%;
height: 200px;
text-align: center;
}
input[type=text]{
width: 600px;
height: 38px;
background-image: url("1.jpg");
background-repeat: no-repeat;
background-position-x: 550px;
}
input[type=submit]{
position: relative;
right: 5px;
width: 130px;
height: 45px;
color: white;
background-color: #4e71f2;
border: solid 1px #4e71f2;
}
#footer{
width: 100%;
height: 160px;
text-align: center;
}
#footer img{
margin-top: 15px;
height: 150px;
width: 720px;
}