Layui menu mouse hover prompt text

You need to reference layui's css js first

The renderings are as follows:

the code

<i class="layui-icon layui-icon-tips" lay-tips="最大长度为16个文字" ></i>

$('*[lay-tips]').on('mouseenter', function () {
            var content = $(this).attr('lay-tips');
            this.index = layer.tips('<div style="padding: 0px; font-size: 14px; color: #eee;">' + content + '</div>', this, {
                time: -1
                , maxWidth: 280
                , tips: [2, '#3A3D49']
            });
        }).on('mouseleave', function () {
            layer.close(this.index);
        });

tips: [2, '#3A3D49'] 

That number is the displayed direction and the color behind it is the background color

tips: The configuration type, that is, the position [1 top; 2 right; 3 bottom; 4 left, font color]