title: How to add a search box on a leaflet map
body: <p>I want to use a leaflet map to be a page's background. And this page has a search function, but this search box is not used to search this map. So my question is how to add a search box on a leaflet map?</p>
  
  <p>Do you have any other solution to use a map to be the background?
  like this page: <a href="http://directory.spatineo.com/" rel="noreferrer">http://directory.spatineo.com/</a></p>