for #55: more UI spec; start edit-container-panel

webextension/css/popup.css

@@ -9,6 +9,10 @@ table {
   margin-block-end: 0;
 }
 
+.button {
+  background: #248aeb;
+}
+
 .panel {
   height: 100%;
 }
@@ -17,6 +21,13 @@ table {
   height: 100%;
 }
 
+.panel-back-arrow {
+  background: #ebebeb;
+  display: flex;
+  justify-content: center;
+  text-align: center;
+}
+
 .onboarding {
   margin: 16px;
   min-block-size: 480px;
@@ -102,6 +113,20 @@ table {
   width: 100%;
 }
 
+.footer-columns {
+  margin: 0;
+  padding: 0;
+}
+
+.footer-button {
+  margin-bottom: 0;
+  border-radius: 0;
+}
+
+.cancel-button {
+  background: #ebebeb;
+}
+
 .edit-containers-text {
   text-align: center;
   border-right: solid 1px #d8d8d8;