.header, .footer {
  background-color: rgb(0, 175, 255);
}

.content {
  background-color: rgba(150, 225, 255, 0.5);
}

.content .summary-box {
  box-shadow:  0.3vw 0.4vh 0.6vh 0px rgba(0,0,0,0.4);
  background-color: rgba(150, 225, 255, 0.5);
}

.left .element-summary-box,.right .element-summary-box, .element-summary-box-radioactive{
  box-shadow:  0.3vw 0.4vh 0.6vh 0px rgba(0,0,0,0.4);
  background-color: rgba(150, 225, 255, 0.5);
}

.content table{
  box-shadow:  0.3vw 0.4vh 0.6vh 0px rgba(0,0,0,0.4);
  background-color: rgba(150, 225, 255, 0.5);
}

.Groups .dropbtn:hover, .History .dropbtn:hover, .Home .dropbtn:hover, .footer .dropbtn:hover{
  background-color: rgba(0,150,225, 1);

}

.dropdown-content-Groups, .dropdown-content-History{
  background-color: rgba(0,150,225, 1);
}

#carbon .right .element-picture-box{
    background-image: url("Carbon/element.png");
}

#silicon .left .element-picture-box{
    background-image: url("Silicon/element.png");
}

#germanium .right .element-picture-box{
    background-image: url("Germanium/element.png");
}

#tin .left .element-picture-box{
    background-image: url("Tin/element.png");
}

#lead .right .element-picture-box{
    background-image: url("Lead/element.png");
}