PeerTube/client/src/app/+admin/config/edit-custom-config/edit-advanced-configuration.component.html

<ng-container [formGroup]="form">

  <div class="form-row mt-5"> <!-- cache grid -->
    <div class="form-group col-12 col-lg-4 col-xl-3">
      <div i18n class="inner-form-title">CACHE</div>
      <div i18n class="inner-form-description">
        Some files are not federated, and fetched when necessary. Define their caching policies.
      </div>
    </div>

    <div class="form-group form-group-right col-12 col-lg-8 col-xl-9">

      <ng-container formGroupName="cache">
        <div class="form-group" formGroupName="previews">
          <label i18n for="cachePreviewsSize">Number of previews to keep in cache</label>

          <div class="number-with-unit">
            <input
              type="number" min="0" id="cachePreviewsSize" class="form-control"
              formControlName="size" [ngClass]="{ 'input-error': formErrors['cache.previews.size'] }"
            >
            <span i18n>{getCacheSize('previews'), plural, =1 {cached image} other {cached images}}</span>
          </div>

          <div *ngIf="formErrors.cache.previews.size" class="form-error">{{ formErrors.cache.previews.size }}</div>
        </div>

        <div class="form-group" formGroupName="captions">
          <label i18n for="cacheCaptionsSize">Number of video captions to keep in cache</label>

          <div class="number-with-unit">
            <input
              type="number" min="0" id="cacheCaptionsSize" class="form-control"
              formControlName="size" [ngClass]="{ 'input-error': formErrors['cache.captions.size'] }"
            >
            <span i18n>{getCacheSize('captions'), plural, =1 {cached caption} other {cached captions}}</span>
          </div>

          <div *ngIf="formErrors.cache.captions.size" class="form-error">{{ formErrors.cache.captions.size }}</div>
        </div>
      </ng-container>

    </div>
  </div>

  <div class="form-row mt-4"> <!-- cache grid -->
    <div class="form-group col-12 col-lg-4 col-xl-3">
      <div class="anchor" id="customizations"></div> <!-- customizations anchor -->
      <div i18n class="inner-form-title">CUSTOMIZATIONS</div>
      <div i18n class="inner-form-description">
        Slight modifications to your PeerTube instance for when creating a plugin or theme is overkill.
      </div>
    </div>

    <div class="form-group form-group-right col-12 col-lg-8 col-xl-9">

      <ng-container formGroupName="instance">
        <ng-container formGroupName="customizations">
          <div class="form-group">
            <label i18n for="customizationJavascript">JavaScript</label>
            <my-help>
              <ng-template ptTemplate="customHtml">
                <ng-container i18n>
                  Write JavaScript code directly.<br />Example: <pre>console.log('my instance is amazing');</pre>
                </ng-container>
              </ng-template>
            </my-help>

            <textarea
              id="customizationJavascript" formControlName="javascript" class="form-control"
              [ngClass]="{ 'input-error': formErrors['instance.customizations.javascript'] }"
            ></textarea>

            <div *ngIf="formErrors.instance.customizations.javascript" class="form-error">{{ formErrors.instance.customizations.javascript }}</div>
          </div>

          <div class="form-group">
            <label for="customizationCSS">CSS</label>

            <my-help>
              <ng-template ptTemplate="customHtml">
                <ng-container i18n>
                  Write CSS code directly. Example:<br /><br />
<pre>
#custom-css {{ '{' }}
color: red;
{{ '}' }}
</pre>
                  Prepend with <em>#custom-css</em> to override styles. Example:<br /><br />
<pre>
#custom-css .logged-in-email {{ '{' }}
color: red;
{{ '}' }}
</pre>
                </ng-container>
              </ng-template>
            </my-help>

            <textarea
              id="customizationCSS" formControlName="css" class="form-control"
              [ngClass]="{ 'input-error': formErrors['instance.customizations.css'] }"
            ></textarea>
            <div *ngIf="formErrors.instance.customizations.css" class="form-error">{{ formErrors.instance.customizations.css }}</div>
          </div>
        </ng-container>
      </ng-container>

    </div>
  </div>

</ng-container>