人机交互作业—手机邮箱导航-JZTXT

页面效果

HTML

<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <title>Document</title>
    <link rel="stylesheet" href="css/index.css">
    <link rel='stylesheet' href="css/email.css">
    <link rel="stylesheet" href="css/font-awesome.min.css">
</head>

<body>
    <div class="l-main">
        <div class="menu">
            <header class="menu_header">
                <h1 class="menu_header-title">我的邮箱</h1>
            </header>
            <nav class="menu_body">
                <ul class="nav">
                    <li class="nav_item"><a href=“#" class="nav_item-link is-active">
                            <i class="fa fa-envelope nav_item-icon"></i>
                            <span class="nav_item-text">收件箱</span>
                            <span class="badge badge-warning">32</span> </a></li>
                    <li class="nav_item"><a href="#" class="nav_item-link"><i class="fa fa-flag nav_item-icon">
                            </i><span class="nav_item-text">红旗邮件</span> <span class="badge">7</span></a>
                    </li>
                    <li class="nav_item"><a href="#" class="nav_item-link"><i class="fa fa-space-shuttle nav_item-icon">
                            </i><span class="nav_item-text">已发送</span> <span class="badge">0/17</span></a>
                    </li>
                    <li class="nav_item"><a href="#" class="nav_item-link"><i class="fa fa-archive nav_item-icon">
                            </i><span class="nav_item-text">草稿箱</span> <span class="badge">2</span></a>
                    </li>
                    <li class="nav_item"><a href="#" class="nav_item-link"><i class="fa fa-trash nav_item-icon">
                            </i><span class="nav_item-text">已删除</span> <span class="badge">5</span></a>
                    </li>
                    <li class="nav_item"><a href="#" class="nav_item-link"><span class="nav_item-text">
                                所有邮件</span> </a></li>
                </ul>
            </nav>
        </div>
    </div>
</body>

</html>

CSS

html,body,div,span,h1,a,ul,li,nav{
    margin: 0;
    padding: 0;
    border: 0;
    font-size: 100%;
    font: inherit;  /*字体设置，所有元素保持一致*/
    vertical-align: baseline; /*元素的基线与父元素的基线对齐*/
  }
  
  body{
    line-height: 1em;
    background-color: #f4f4f4;
    font-family: Arial,sans-serif;
    font-size: 14px;
    font-weight: lighter;    /*lighter 轻轻地*/
  }
  .l-main{
    width: 530px;
    margin: 0 auto;
  }
  .menu{
    width: 250px;
    margin: 40px;
    background: #fff;
    box-shadow: 0 1px 4px rgba(0,0,0,.3);
    border-radius: 5px;
    float: left;
  }
  .menu_header{
    background-color: #4b4f55;
    border-bottom: 1px solid #353a40;
    border-radius: 5px 5px 0 0 ;
  }
  .menu_header-title{
    color: #fff;
    padding: 15px;
    text-shadow: 0 1px 0 rgba(0,0,0,0.4);
  }
  .menu_body{
    border-radius: 0 0 5px 5px;
  }
  .nav{
    list-style: none;
  }
  .nav_item{
    position: relative;
  }
  .nav_item-link{
    padding: 10px 15px;
    text-decoration: none;
    color: #8b8e93;
    display: block;
    border-bottom: 1px solid #f0f0f0;
  }
  .nav_item-link:hover{
    background: #f0f0f0;
  }
  .nav_item-link.is-active{
    background: #6e757f;
    color: #fff;
    border-bottom-color: #4b4f55;
    box-shadow: 0 1px 0 #7a828d inset;   /*inset 内嵌效果*/
  }
  .nav_item-link.is-active:after{
    content: "";
    display: block;
    position: absolute;
    top: 50%;
    right: -6px;
    margin-top: -6px;
    border-top: 6px solid transparent;
    border-bottom: 6px solid transparent;
    border-left: 6px solid #6e757f;
  }
  .nav_item-link.is-active{
    color: #fff;
  }
  .nav_item:last-child .nav_item-link{
    border-bottom: none;
  }
  .nav_item-icon{
    width: 20px;
    text-align: center;
    font-size: 18px;
    margin-right: 10px;
  }
  .badge{
    font-size: 12px;
    padding: 2px 8px;
    border: 1px solid #d1d1d1;
    border-radius: 10px;
    position: absolute;
    top: 10px;
    right: 15px;
  }
  .badge-warning{
    background: #ed373f;
    border-color: #ed373f;
  }
  .fa-flag{
    color: red;
  }
  .fa-archive{
    color: orange;
  }
  .fa-envelope{
    color: #35b3ff;
  }