更改

<div class="sr-navbox" style="background:#111; border:1px solid #444;">

<div class="sr-navbox {{{class|}}}" style="background:#111; border:1px solid #444; {{{style|}}}">

<div class="sr-navbox-title" style="background:#444; text-align:center; padding:10px 5px;">'''{{{title}}}'''</div>

<div class="sr-navbox-title {{{title-class|}}}" style="background:#444; text-align:center; padding:10px 5px; {{{title-style|}}}">'''{{{title}}}'''</div>

<div class="sr-navbox-content" style="background:#222;">

<div class="sr-navbox-content {{{content-class|}}}" style="{{{content-style|}}}">

<div class="sr-navbox-block" style="display:flex;">

</div>

</div>

</div>

</div>