I want to create a multilevel dropdown list in html like in above pic.
<select id ="dropdown">
<option value="consolidated" id="consolidated">All Schools & Companies</option>
<option value="company">Companies</option>
<option value="school" id ="school">Schools</option>
</select>
this is my base level 1 list. if I click on "Companies" then a new sub menu should open showing companyA companyB, If i click on "Schools" then i should get a another sub menu showing schoolA, schoolB.