<!doctype html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport"
          content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
    <link rel="stylesheet" href="css/layui.css">
</head>
<body>
<form action="" class="layui-form">
    <div class="layui-form-item">
        <label class="layui-form-label">输入框</label>
        <div class="layui-input-block">
            <input type="text" name="" placeholder="请输入" autocomplete="off" class="layui-input">
        </div>
    </div>
    <div class="layui-form-item">
        <label class="layui-form-label">下拉选择框</label>
        <div class="layui-input-block">
            <select name="interest" lay-filter="aihao">
                <option value="0">写作</option>
                <option value="1">阅读</option>
            </select>
        </div>
    </div>
    <div class="layui-form-item">
        <label for="" class="layui-form-label">开关</label>
        <div class="layui-input-block">
            <input type="checkbox" lay-skin="switch">
        </div>
    </div>
    <div class="layui-form-item">
        <label class="layui-form-label">复选框</label>
        <div class="layui-input-block">
            <input type="checkbox" name="like[write]" title="写作">
            <input type="checkbox" name="like[read]" title="阅读">
        </div>
    </div>
    <div class="layui-form-item">
        <label class="layui-form-label">单选框</label>
        <div class="layui-input-block">
            <input type="radio" name="sex" value="0" title="男">
            <input type="radio" name="sex" value="1" title="女" checked>
        </div>
    </div>
    <div class="layui-form-item">
        <label for="" class="layui-form-label">请填写描述</label>
        <div class="layui-input-block">
            <textarea name="" placeholder="请输入内容" class="layui-textarea" id="" ></textarea>
        </div>
    </div>
    <div class="layui-form-item">
        <div class="layui-input-block">
            <button class="layui-btn" lay-submit lay-filter="*">立即提交</button>
            <button type="reset" class="layui-btn layui-btn-primary">重置</button>
        </div>
    </div>
</form>
<script src="layui.js"></script>
<script>
    layui.use('form', function(){
        var form = layui.form;

        //各种基于事件的操作,下面会有进一步介绍
    });
</script>
</body>
</html>

必须加入最后一对标签并声明使用form,才有各种控件的样式。
附上效果图,初次接触layui前台框架,感觉样式很清爽!!

layui 表单页面代码_layui