Merged in feature/from-pantheon (pull request #16)

code from pantheon

* code from pantheon

wp/wp-includes/css/dist/nux/style.css

@@ -0,0 +1,110 @@
+:root{
+  --wp-admin-theme-color:#007cba;
+  --wp-admin-theme-color--rgb:0, 124, 186;
+  --wp-admin-theme-color-darker-10:#006ba1;
+  --wp-admin-theme-color-darker-10--rgb:0, 107, 161;
+  --wp-admin-theme-color-darker-20:#005a87;
+  --wp-admin-theme-color-darker-20--rgb:0, 90, 135;
+  --wp-admin-border-width-focus:2px;
+  --wp-block-synced-color:#7a00df;
+  --wp-block-synced-color--rgb:122, 0, 223;
+}
+@media (min-resolution:192dpi){
+  :root{
+    --wp-admin-border-width-focus:1.5px;
+  }
+}
+
+.nux-dot-tip:after,.nux-dot-tip:before{
+  border-radius:100%;
+  content:" ";
+  pointer-events:none;
+  position:absolute;
+}
+.nux-dot-tip:before{
+  animation:nux-pulse 1.6s cubic-bezier(.17, .67, .92, .62) infinite;
+  background:rgba(0,115,156,.9);
+  height:24px;
+  left:-12px;
+  opacity:.9;
+  top:-12px;
+  transform:scale(.3333333333);
+  width:24px;
+}
+.nux-dot-tip:after{
+  background:#00739c;
+  height:8px;
+  left:-4px;
+  top:-4px;
+  width:8px;
+}
+@keyframes nux-pulse{
+  to{
+    background:rgba(0,115,156,0);
+    transform:scale(1);
+  }
+}
+.nux-dot-tip .components-popover__content{
+  padding:20px 18px;
+  width:350px;
+}
+@media (min-width:600px){
+  .nux-dot-tip .components-popover__content{
+    width:450px;
+  }
+}
+.nux-dot-tip .components-popover__content .nux-dot-tip__disable{
+  position:absolute;
+  right:0;
+  top:0;
+}
+.nux-dot-tip[data-y-axis=top]{
+  margin-top:-4px;
+}
+.nux-dot-tip[data-y-axis=bottom]{
+  margin-top:4px;
+}
+.nux-dot-tip[data-y-axis=middle][data-y-axis=left]{
+  margin-left:-4px;
+}
+.nux-dot-tip[data-y-axis=middle][data-y-axis=right]{
+  margin-left:4px;
+}
+.nux-dot-tip[data-y-axis=top] .components-popover__content{
+  margin-bottom:20px;
+}
+.nux-dot-tip[data-y-axis=bottom] .components-popover__content{
+  margin-top:20px;
+}
+.nux-dot-tip[data-y-axis=middle][data-y-axis=left] .components-popover__content{
+  margin-right:20px;
+}
+.nux-dot-tip[data-y-axis=middle][data-y-axis=right] .components-popover__content{
+  margin-left:20px;
+}
+.nux-dot-tip[data-y-axis=center],.nux-dot-tip[data-y-axis=left],.nux-dot-tip[data-y-axis=right]{
+  z-index:1000001;
+}
+@media (max-width:600px){
+  .nux-dot-tip[data-y-axis=center] .components-popover__content,.nux-dot-tip[data-y-axis=left] .components-popover__content,.nux-dot-tip[data-y-axis=right] .components-popover__content{
+    align-self:end;
+    left:5px;
+    margin:20px 0 0;
+    max-width:none !important;
+    position:fixed;
+    right:5px;
+    width:auto;
+  }
+}
+.nux-dot-tip.components-popover:not([data-y-axis=middle])[data-y-axis=right] .components-popover__content{
+  margin-left:0;
+}
+.nux-dot-tip.components-popover:not([data-y-axis=middle])[data-y-axis=left] .components-popover__content{
+  margin-right:0;
+}
+.nux-dot-tip.components-popover.interface-more-menu-dropdown__content:not([data-y-axis=middle])[data-y-axis=right] .components-popover__content{
+  margin-left:-12px;
+}
+.nux-dot-tip.components-popover.interface-more-menu-dropdown__content:not([data-y-axis=middle])[data-y-axis=left] .components-popover__content{
+  margin-right:-12px;
+}