jquery select a with class code example
Example 1: jquery selector this and class
$(".class").click(function(){
$(this).find(".subclass").css("visibility","visible");
});
Example 2: jquery find tag and class
$(".txtClass") => getElementsByClassName()
$("#childDiv2 .txtClass") => getElementById(),
then getElementsByClassName()
$("#childDiv2 > .txtClass") => getElementById(),
then iterate over children and check class
$("input.txtClass") => getElementsByTagName(),
then iterate over results and check class
$("#childDiv2 input.txtClass") => getElementById(),
then getElementsByTagName(),
then iterate over results and check class