#contenedor #centro{width:55.6%;float:left;margin:1% 2% 2%}
#contenedor #centro #buscar{width:100%;float:left;border:1px solid #B8B8B8;margin-top:10px;margin-bottom:20px;text-align:center;padding-bottom:37px}
#contenedor #centro #buscar h2{font-size:22px;font-weight:400}
@media screen and (max-width: 780px) {
#contenedor #centro{width:100%;padding:25px 20px;margin:0}
}