.portfolio{
    width: 250px;
    height:200px;
	float:left; 
	margin:5px;
	text-align:center;
	/* background-color:yellow; */
} .portfolio img{ width: 250px; height:167px; margin: 0 auto;}

.caixaservicos {
	height:350px;
	max-height:500px;
	background-color:yellow;
}