2 codes i need help with, can anyone identify them?? Options

[andygirl817]

i have these two codes in my layouts but i already forgot why i put them there and when i take them off i dont notice any differences can anyone identify them and tell me what they do please and thank you

CODE

<style> table table td.text table td.text table table tbody td table, span.btext {display: none !important} </style>

CODE

<style type="text/css">.hide{display:none;visibility:hidden;}</style>