.resistors-series-parallel1{width:126px; height:73px ;}
.resistors-series-parallel2{width:179px; height:96px ;}
.resistors-series-parallel2b{width:204px; height:177px ;}
.resistors-series-parallel3{width:188px; height:152px ;}
.resistors-series-parallel3b{width:110px; height:107px ;}
.resistors-series-parallel5{width:126px; height:73px ;}
.resistors-series-parallel5b{width:219px; height:201px ;}
.resistors-series-parallel4{width:199px; height:142px ;}
.resistors-series-parallel4b{width:104px; height:90px ;}