.dielectric{width:108px; height:261px ;}
.charge-distribution2{width:111px; height:109px ;}
.faraday-cage{width:118px; height:344px ;}
.farady-gage{width:110px; height:165px ;}
.conductor-potential{width:85px; height:87px ;}
.charge-distribution3{width:137px; height:92px ;}
.conductor-field{width:85px; height:86px ;}
.conductor-field1{width:162px; height:146px ;}
.conductor-field2{width:162px; height:110px ;}