Selectors in J-Query
$("*") Selects all elements
$(this) Selects the current HTML element
$("p.intro") Selects all elements with class="intro"
$("p:first") Selects the first
element
$("ul li:first") Selects the first
element of the first
$("ul li:first-child") Selects the first - element of every
$("[href]") Selects all elements with an href attribute
$("a[target='_blank']") Selects all elements with a target attribute value equal to "_blank"
$("a[target!='_blank']") Selects all elements with a target attribute value NOT equal to "_blank"
$(":button") Selects all