margin-top:0;margin-right:.3125rem;margin-left:0}.valid-feedback{display:none;width:100%;margin-top:.25rem;font-size:80%;color:#28a745}.valid-tooltip{position:absolute;top:100%;z-index:5;display:none;max-width:100%;padding:.25rem .5rem;margin-top:.1rem;font-size:.875rem;line-height:1.5;color:#fff;background-color:rgba(40,167,69,.9);border-radius:.25rem}.is-valid~.valid-feedback,.is-valid~.valid-tooltip,.was-validated :valid~.valid-feedback,.was-validated :valid~.valid-tooltip{display:block}.form...

ckground-color:rgba(40,167,69,.9);border-radius:.25rem}.form-row>.col>.valid-tooltip,.form-row>[class*=col-]>.valid-tooltip{left:5px}.is-valid~.valid-feedback,.is-valid~.valid-tooltip,.was-validated :valid~.valid-feedback,.was-validated :valid~.valid-tooltip{display:block}.form-control.is-valid,.was-validated .form-control:valid{border-color:#28a745;padding-right:calc(1.5em + .75rem)!important;background-image:url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' width='8' height='8'...

rm-control-feedback.far,.input-group-lg+.form-control-feedback.fas,.input-group-lg+.form-control-feedback.ion,.input-group-lg+.form-control-feedback.svg-inline--fa,.input-lg+.form-control-feedback.fa,.input-lg+.form-control-feedback.fab,.input-lg+.form-control-feedback.fad,.input-lg+.form-control-feedback.fal,.input-lg+.form-control-feedback.far,.input-lg+.form-control-feedback.fas,.input-lg+.form-control-feedback.ion,.input-lg+.form-control-feedback.svg-inline--fa{line-height:calc(2.875rem + 2px)}.form-group-lg...

}\n}\n\n@mixin form-validation-state($state, $color, $icon) {\n  .#{$state}-feedback {\n    display: none;\n    width: 100%;\n    margin-top: $form-feedback-margin-top;\n    @include font-size($form-feedback-font-size);\n    color: $color;\n  }\n\n  .#{$state}-tooltip {\n    position: absolute;\n    top: 100%;\n    left: 0;\n    z-index: 5;\n    display: none;\n    max-width: 100%; // Contain to parent when possible\n    padding: $form-feedback-tooltip-padding-y $form-feedback-tooltip-padding-x;\n    margin-top:...

form-validation-state($state, $color, $icon) {\n  .#{$state}-feedback {\n    display: none;\n    width: 100%;\n    margin-top: $form-feedback-margin-top;\n    @include font-size($form-feedback-font-size);\n    color: $color;\n  }\n\n  .#{$state}-tooltip {\n    position: absolute;\n    top: 100%;\n    z-index: 5;\n    display: none;\n    max-width: 100%; // Contain to parent when possible\n    padding: $form-feedback-tooltip-padding-y $form-feedback-tooltip-padding-x;\n    margin-top: .1rem;\n    @include...

    size and duration. This feature is an unstable preview: the API is subject
    to change, and the implementation is incomplete. This is a big new API we
    are eager for feedback.

 *  New: Support ALPN via Google Play Services' Dynamic Security Provider. This
    expands HTTP/2 support to older Android devices that have Google Play
    Services.

## Changelog since v1.17.0

A complete changelog for the release notes is now hosted in a customizable
format at [https://relnotes.k8s.io][1]. Check it out and please give us your
feedback!

[1]: https://relnotes.k8s.io/?releaseVersions=1.18.0

## What’s New (Major Themes)

### Kubernetes Topology Manager Moves to Beta - Align Up!

- Incorporating feedback on PR #119341 ([#120087](https://github.com/kubernetes/kubernetes/pull/120087), [@divyasri537](https://github.com/divyasri537)) [SIG API Machinery]

### SIG Cloud Provider

  - [alpha] Introducing the v1alpha1 CRI API to allow pluggable container runtimes; an experimental docker-CRI integration is ready for testing and feedback. ([docs](https://github.com/kubernetes/community/blob/master/contributors/devel/sig-node/container-runtime-interface.md)) ([kubernetes/features#54](https://github.com/kubernetes/enhancements/issues/54))