javascript - 添加溢出滚动删除伪元素

Question

我在这里有一个工具提示，其中显示了一个被跟踪的电子邮件列表，它需要有一定的高度。所以，我添加了溢出。如果我这样做，我将失去作为伪元素放置的语音气泡。取消注释我在 css 中声明的行。我已经研究了关于类似问题的类似 StackOverflow 问题，但它们在我的情况下不起作用。

这是jsfiddle链接

.center {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    position: relative;
}
.tooltip_container {
    background: white;
    height: 150px;
    width: 350px;
    z-index: 100;
    display: block;
    position: absolute;
    left: 50%;
    bottom: 10%;
    transform: translate(-50%, -50%);
    box-shadow: 0px 0px 11px 1px rgba(0, 0, 0, 0.34);
    /* uncomment to see the change */
    /* overflow-y: scroll;  */
}
.tooltip_container::-webkit-scrollbar {
    width: 5px;
}

.tooltip_container::-webkit-scrollbar-thumb {
    background-color: darkgrey;
}

.tooltip_container::after {
    content: " ";
    position: absolute;
    left: 20%;
    top: 0;
    width: 0;
    border-bottom: 15px solid #dbdeb5;
    border-right: 15px solid transparent;
    border-left: 15px solid transparent;
    transform: translateY(-100%);
}

.track_event img {
    width: 15px;
    height: 15px;
}
#track_events {
    height: 30px;
    width: 100%;
    background: #dbdeb5;
}

#track_events_list {
    margin-bottom: 25px;
}

.track_event {
    display: flex;
    flex-direction: row;
    gap: 1rem;
    align-items: baseline;
    margin: 0 15px;
    height: 100%;
    border-bottom: 2px solid rgba(0, 0, 0, 0.2);
    padding-bottom: 10px;
}

.mail_viewer_info {
    display: flex;
    flex-direction: column;
    align-content: flex-start;
    text-align: start;
}

<div class="center">
    <div class="tooltip_container">
        <section id="track_events"></section>
        <section id="track_events_list">
            <div class="track_event">
                <img
                    src="https://image.flaticon.com/icons/png/512/535/535244.png"
                    alt=""
                />

                <div class="mail_viewer_info">
                    <h3 class="tracked_email">[e-mail]</h3>

                    <div class="event_info">
                        <span>22m <span> . </span>opened email </span>
                    </div>
                </div>
            </div>
            <div class="track_event">
                <img
                    src="https://image.flaticon.com/icons/png/512/535/535244.png"
                    alt=""
                />

                <div class="mail_viewer_info">
                    <h3 class="tracked_email">[e-mail]</h3>

                    <div class="event_info">
                        <span>22m <span> . </span>opened email </span>
                    </div>
                </div>
            </div>
            <div class="track_event">
                <img
                    src="https://image.flaticon.com/icons/png/512/535/535244.png"
                    alt=""
                />

                <div class="mail_viewer_info">
                    <h3 class="tracked_email">[e-mail]</h3>

                    <div class="event_info">
                        <span>22m <span> . </span>opened email </span>
                    </div>
                </div>
            </div>
        </section>
    </div>
</div>

标签： javascripthtmlcss

Answer 1

你应该使用溢出-y#track_events_list

#track_events_list {
    height: 150px;
    margin-bottom: 25px;
    overflow-y: scroll;
}

.center {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    position: relative;
}
.tooltip_container {
    background: white;
    height: 150px;
    width: 350px;
    z-index: 100;
    display: block;
    position: absolute;
    left: 50%;
    bottom: 10%;
    transform: translate(-50%, -50%);
    box-shadow: 0px 0px 11px 1px rgba(0, 0 0, 0.34);
    /* uncomment to see the change */
    /*overflow-y: scroll; */

}
.tooltip_container::-webkit-scrollbar {
    width: 5px;
}

.tooltip_container::-webkit-scrollbar-thumb {
    background-color: darkgrey;
}

.tooltip_container::after {
    content: " ";
    position: absolute;
    left: 20%;
    top: 0;
    width: 0;
    border-bottom: 15px solid #dbdeb5;
    border-right: 15px solid transparent;
    border-left: 15px solid transparent;
    transform: translateY(-100%);
}

.track_event img {
    width: 15px;
    height: 15px;
}
#track_events {
    height: 30px;
    width: 100%;
    background: #dbdeb5;
}

#track_events_list {
    height: 150px;
    margin-bottom: 25px;
    overflow-y: scroll;
}

.track_event {
    display: flex;
    flex-direction: row;
    gap: 1rem;
    align-items: baseline;
    margin: 0 15px;
    height: 100%;
    border-bottom: 2px solid rgba(0, 0, 0, 0.2);
    padding-bottom: 10px;
}

.mail_viewer_info {
    display: flex;
    flex-direction: column;
    align-content: flex-start;
    text-align: start;
}

<div class="center">
    <div class="tooltip_container">
        <section id="track_events"></section>
        <section id="track_events_list">
            <div class="track_event">
                <img
                    src="https://image.flaticon.com/icons/png/512/535/535244.png"
                    alt=""
                />

                <div class="mail_viewer_info">
                    <h3 class="tracked_email">[e-mail]</h3>

                    <div class="event_info">
                        <span>22m <span> . </span>opened email </span>
                    </div>
                </div>
            </div>
            <div class="track_event">
                <img
                    src="https://image.flaticon.com/icons/png/512/535/535244.png"
                    alt=""
                />

                <div class="mail_viewer_info">
                    <h3 class="tracked_email">[e-mail]</h3>

                    <div class="event_info">
                        <span>22m <span> . </span>opened email </span>
                    </div>
                </div>
            </div>
            <div class="track_event">
                <img
                    src="https://image.flaticon.com/icons/png/512/535/535244.png"
                    alt=""
                />

                <div class="mail_viewer_info">
                    <h3 class="tracked_email">[e-mail]</h3>

                    <div class="event_info">
                        <span>22m <span> . </span>opened email </span>
                    </div>
                </div>
            </div>
        </section>
    </div>
</div>