:href="/v1.21/img/icons.svg#magnifier"/></svg></button></form></div><div class=card><div class="body default" aria-labelledby=header0><ul role=tree aria-expanded=true aria-labelledby=header0><li role=treeitem aria-label=Concepts><a class=main title="Learn about the different parts of the Istio system and the abstractions it uses." href=/v1.21/docs/concepts/>Concepts</a><ul role=group aria-expanded=true class=leaf-section><li role=none><a role=treeitem title="Describes the various Istio features focused on t