bootstrap4 Reboot details summary 美化（点选禁止选中文本，单行隐藏角标，多行后移）

bootstrap4 Reboot details summary

优化这块，主要是为了去掉details summary的角标~

所以优化写了一下。

原始HTML

<details>
    <summary>Some details</summary>
    <p>More info about the details.</p>
</details>

原始效果

原始效果演示 点击 https://v4.bootcss.com/docs/4.0/content/reboot/#summary

新HTML

（增加class="single-line"）

<h4>单行</h4>
<details>
    <summary class="single-line">Some details</summary>
</details>
<br />
<h4>多行</h4>
<details>
    <summary>Some details</summary>
    <p>More info about the details.</p>
</details>

美化效果

增加CSS

details summary {
    -webkit-touch-callout: none; /* iOS Safari */
    -webkit-user-select: none; /* Chrome/Safari/Opera */
    -khtml-user-select: none; /* Konqueror */
    -moz-user-select: none; /* Firefox */
    -ms-user-select: none; /* Internet Explorer/Edge */
    user-select: none; /* Non-prefixed version, currently
not supported by any browser */
}

    details summary + p {
        padding-left: 1.15em;
    }

    details summary:focus {
        outline: none;
    }

    details summary.single-line {
        cursor: default;
    }

        details summary.single-line + p {
            display: none;
        }

        /*Chrome*/
        details summary.single-line::-webkit-details-marker {
            visibility: hidden;
        }
        /*Firefox*/
        details summary.single-line:first-of-type {
            list-style: none inside url(data:image/gif;base64,R0lGODlhCgABAIAAAP///wAAACH5BAEAAAAALAAAAAAKAAEAAAIDhI8FADs=);
        }

实际应用效果如下

如非上述描述的效果，请自行调整，欢迎留言与我交流。