Tab-Index用于布局中绝对定位的元素

Question

绝对位置元素的制表符索引

暂时，假设我编写了以下代码：

    <header class="header hap" [ngClass]="authority">
        <div class="header-inner">
            <div class="header-identity">
                <a id="theLogo" class="logo" [routerLink]="[links.home]" title="Navigate to Home">
                    <img src="assets/logo-white.svg" alt="Logo">
                </a>
                <span class="client-logo" *ngIf="user.brandingImage && !user.isTheAdmin()">
                    <img class="brandingImage" [src]="user.brandingImage" [alt]="user.brandingName" onerror="this.style.display='none'">
                </span>
                [ more links ]
            </div>
            <nav class="main-nav for authenticated" [ngClass]="{'active':showMenu, 'app-only':!isCurrPageAdminApp()}">
                <button class="menu" (click)="toggleMenu()">Menu</button>
                <div class="main-nav-flyout" *ngIf="showMenu">
                    <div class="nav-header">
                        <ul>
                            <li>
                                <a id="main-nav-profile" [routerLink]="['/profile']"><span class="icon icon-user2"></span> My Profile</a>
                            </li>
                            [ more dropdown items ]
                        </ul>
                        <a id="main-nav-close" class="close"(click)="onClickMenuClose()"><span class="icon-cross"></span></a>
                    </div>
                    <div class="nav-body">
                        <ul *ngIf="isCurrPageAdminApp()" class="main-nav-list">
                            <li class="current-app">Administrative Tools</li>
                            <li><a id="main-nav-xAdmin" *ngIf="user.isTheAdmin()" [routerLink]="['admin/x']">X Admin</a></li>
                            [ more links ]
                            <li>
                                <span>Reports</span>
                                <ul>
                                    <li class="user-status"><a id="main-nav-userStatusReport" [routerLink]="['admin/reports/userStatus']">User Status</a></li>
                                    [ more links ]
                                </ul>
                            </li>
                        </ul>
                        <ul class="app-list" *ngIf="user.userApplications">
                            <li *ngIf="showTheLink()">
                                <a id="app-list-type" [routerLink]="['/']">
                                    ...
                                </a>
                            </li>
                            [ more links ]
                            <li *ngFor="let application of user?.userApplications">
                                <a id="app-list-{{application.abbreviation}}" *ngIf="!isAdminApp(application)" (click)="onClickMenuItem(application)">
                                    {{ application.title }}
                                </a>
                            </li>
                        </ul>
                    </div>
                </div>
            </nav>
            <nav class="user-nav for authenticated" role="menu">
                <span *ngIf="user.brandingName" class="user-location">{{user.brandingName}}</span>
                <span *ngIf="user.brandingName" class="pipe">|</span>
                <a id="user-nav-profile" class="user-name" [routerLink]="['/profile']">
                    <span class="name">{{user?.firstName}} {{user?.lastName}}</span>
                </a>
                <a id="user-nav-logout" class="logout" [routerLink]="['/', 'logout']">Log out</a>
            </nav>
        </div>
    </header>

问题

各种元素（可能是.header-inner > *）使用position: absolute;进行样式设置，因此tabindex的顺序对于那些在标记中声明得较晚但在几何形状中位于几何元素更早的元素是偏斜的。布局。

问题

是否有一种方法可以强制将tabindex设为所有自然索引（0），除了需要切换的2个项目之外-以可伸缩的方式实现而不必实现tabindex是否用于布局中的每个新项目？