html+css实战135-按钮

index.css


/* index.css是用来美化首页的 */
* {
    margin: 0;
    padding: 0;
    /* 內减模式 */
    box-sizing: border-box;
}

li {
    list-style: none;
}
a {
    text-decoration: none;
}

.clearfix:before,.clearfix:after {
    content:"";
    display:table; 
  }
  .clearfix:after {
    clear:both;
  }



body{
    background-color: #f3f5f7;
}

.wrapper{
    width: 1200px;
    margin: 0 auto;
}
.header{
    height: 42px;
    background-color: pink;
    margin: 30px;
}
h1 {
    float: left;
}

/* 导航 */
.nav {
    float: left;
    margin-left: 70px;
    height: 42px;
}
.nav li{
    float: left; 
    margin-right: 26px;
   
}
.nav li a{
    display: block;
    padding: 0 9px;
    height: 42px;
    line-height: 42px;
   
}
.nav li a:hover{
    border-bottom: 2px solid #00a4ff;
}
/* 搜索 */
.search {
    float: left;
    margin-left: 59px;
    width: 412px;
    height: 40px;
    border: 1px solid #00a4ff;
}

.search input {
    float: left;
    padding-left: 20px;
    /* 左右加一起的尺寸要小于等于410 */
    width: 360px;
    height: 38px;
    border: 0;
}

/* 控制placeholder的样式 */
.search input::placeholder {
    font-size: 14px;
    color: #bfbfbf;
}

.search button {
    float: left;
    width: 50px;
    height: 40px;
    background-image: url(../images/btn.png);
    border: 0;
}

index.html

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <link rel="stylesheet" href="./css/index.css">
</head>
<body>
    <div class="header wrapper">
        <h1>
            <a><img src="./images/logo.png"></a>
        </h1>
      
        <div class="nav">
            <ul>
                <li><a href="#">首页</a></li>
                <li><a href="#">课程</a></li>
                <li><a href="#">职业规划</a></li>
            </ul>
        </div>
        <diV class="search">
            <input type="text" placeholder="输入关键词"><button></button>
        </diV>
       
    </div>
</body>
</html>

html+css实战135-按钮

运行结果

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