.header, .footer {
  background-color: rgb(0, 50, 255);
}

.content {
  background-color: rgba(100, 100, 255, 0.5);
}

.content .summary-box {
  box-shadow:  0.3vw 0.4vh 0.6vh 0px rgba(0,0,0,0.4);
  background-color: rgba(100, 100, 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(100, 100, 255, 0.5);
}

header .header .logo {
  background-image: url(../../inverted_logo.png);
}

.content table{
  box-shadow:  0.3vw 0.4vh 0.6vh 0px rgba(0,0,0,0.4);
  background-color: rgba(100, 100, 255, 0.5);
}

.Groups .dropbtn:hover, .History .dropbtn:hover, .Home .dropbtn:hover, .footer .dropbtn:hover{
  background-color: rgba(0,25,225, 1);

}

.Groups .dropbtn, .History .dropbtn, .Home .dropbtn, .footer .dropbtn{
  color: white;

}

.dropdown-content-Groups, .dropdown-content-History{
  background-color: rgba(0,25,225, 1);
}

.dropdown-content-Groups a, .dropdown-content-History a{
  color: white;
}

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


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

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

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