CSS

a
a:visited { ... }
a:focused { ... }
a:hover { ... }
a:active { ... }

<div class="ctr-1">
    <h3>Title1</h3>
    <div class="ctr-2">
        <h3>Title2</h3>
    </div>
</div>

hide first only
.ctr-1 > h3:first-child { display:none; }

hide two (first of a div)
.ctr-1 h3:first-child { display:none; }

borderiai viduje, kaip bootstrap

body{
    box-sizing: border-box;
}

pvz: absolute rodykle uzdedama ant select elemento ir 
pointer-events: none;
Rezultatas: paspaudus ant rodykles, atsidaro select elementas