.geometric-sequence1{width:220px; height:135px ;}
.geometric-sequence2{width:210px; height:74px ;}
.geometric-sequence3{width:209px; height:121px ;}
.geometric-sequence4{width:194px; height:219px ;}
.geometric-sequence5{width:174px; height:168px ;}
.geometric-sequence6{width:160px; height:142px ;}