废话不多说了，直接给大家贴代码了，具体代码如下所述：
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=utf-8">
<style>
#search ul {
list-style-type: none;
display: block;
width: 100px;
height: 33px;
margin: 0;
padding: 0;
border: 0px;
float: left;
}
#search li {
border: 0px;
margin: 0px;
padding: 0px;
}
#search .selected {
display: block;
}
#search form {
margin: 0px;
padding: 0px;
}
#search input {
height: 30px;
width: 400px;
margin: 0px;
}
#search .button {
font-size: 17px;
font-weight: 600;
color: #002D96;
height: 30px;
width: 110px;
margin-left: 50px;
background: #e6efc2;
opacity: 0.8;
border: #7fb80e 1px solid;
cursor: pointer;
-webkit-border-radius: 2px;
border-radius: 2px;
}
</style>
</head>
<body>
<div id="search" align="center">
<table>
<tr>
<td>
<ul>
<li style="display:block;"><img width="80" src="/UploadFiles/2021-04-02/bd_logo1.png">
以上所述是小编给大家介绍的JavaScript切换搜索引擎的导航网页搜索框实例代码，希望对大家有所帮助，如果大家有任何疑问欢迎给我留言，小编会及时回复大家的！