app/views/users/edit.html.erb
<div class="container pb-2">
<div class="row justify-content-md-center">
<div class="col-md-6 mt-4 mb-3 pt-1">
<%= render "user_settings_tabs", user: @user %>
<%= form_for @user do |f| %>
<%= render "error_messages", object: @user %>
<div class="form-group">
<%= f.label :name %>
<%= f.text_field :name, class: "form-control" %>
</div>
<div class="form-group">
<%= f.label :location %>
<%= f.text_field :location, class: "form-control" %>
</div>
<div class="form-group">
<%= f.label :bio %>
<%= f.text_area :bio, rows:"6", class: "form-control" %>
</div>
<div class="form-group">
<%= label_tag "Gravatar" %>
<div class="avatar-container bg-white border rounded text-center pt-3 pb-2">
<%= gravatar_image_tag @user.email, alt: @user.name,
class: "user-avatar" %>
<%= link_to "Change", "https://en.gravatar.com/emails/",
target: "blank", class: "d-block mt-2" %>
</div>
</div>
<%= f.submit "Update",
class: "btn btn-primary btn-block btn-lg btn-3d mt-4 mb-4" %>
<% end %>
</div>
</div>
</div>