在元素内部显示元素，位置为：relative;带溢出的外部块：隐藏

Question

我有一个滑块，一次显示3个块。某些块可以有一个带有position: absolute;的标志，并且应该显示在块之外。我最左边带有标记的块有麻烦，因为滑块容器有overflow: hidden;，所以它被隐藏了。

这是我的布局示例。

* {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        .grand-parent {
            position:relative;
            width: 327px;
            height: 200px;
            margin: 50px auto;
        }

        .parent {
            position:relative;
            overflow:hidden;
            width: 100%;
            height: 100%;
            border: 1px solid blueviolet;
        }
        .child {
            overflow:hidden;
            width: 100%;
            height: 100%;
            border: 1px solid red;
        }

        .infoblock-list-item {
            position:relative;
            display: inline-block;
            width: 95px;
            height: 100%;
            border: 1px solid blue;
            margin-right: 15px;
        }

        .infoblock-list-item:last-child {
            margin-right: 0;
        }

        .flag {
            position: absolute;
            top: 3%;
            left: -14px;
            background: #2eaa4f;
            color: #fff;
            padding: 5px 10px;
            font-size: 13px;
            text-transform: uppercase;
        }

        .flag:before {
            content: '';
            position: absolute;
            width: 0;
            height: 0;
            border: 7.2px solid transparent;
            border-top-color: #1a8d37;
            border-right-color: #1a8d37;
            left: 0;
            top: 100%;
        }

        .bx-controls-direction a{
            position: absolute;
            top: 50%;
            margin-top: -16px;
            outline: 0;
        }

        .bx-prev {
            left: auto;
            right: calc(100% + 15px);
            width: 40px;
            height: 40px;
            transition: all 0.3s ease-out 0s;
        }

        .bx-next {
            right: auto;
            left: calc(100% + 15px);
            width: 40px;
            height: 40px;
            transition: all 0.3s ease-out 0s;
        }

<div class="grand-parent">
            <div class="parent">
                <div class="child">
                    <div class="infoblock-list-item">
                        <div class="flag">NEW</div>
                    </div>
                    <div class="infoblock-list-item">
                    </div>
                    <div class="infoblock-list-item">
                        <div class="flag">NEW</div>
                    </div>
                </div>
            </div>
            <div>
                <div class="bx-controls-direction">
                    <a class="bx-prev" href="">PREV</a>
                    <a class="bx-next" href="">NEXT</a>
                </div>
            </div>
        </div>

是否存在针对我的情况的解决方案？谢谢。