#first {width: 20%; margin-right: 3%; float:left; }
#center {width: 53%; margin-right: 3%; float:left; }
#second {width: 47%;  float:left;  }
#third {width: 47%; float:right; }
#fourth {width: 18%; margin-right:-100%; float:left;}

#faces img {margin: 1.5em 2em 0em 0 ; float:left; border: 1px solid }
#partners img {margin-bottom: 2em}