
.img-center {
  margin-left: auto;
  margin-right: auto;
}

#timer {
  margin-bottom: 20px;
}

#timer h2 {
  font-size: 60px;
  margin-bottom: 0;
  color: #000;
}

#equation {
  margin-bottom: 20px;
}

.bulb {
  cursor: pointer;
}

#question h2 {
  margin-bottom: 0;
}

.ansText {
  min-height: 30px;
  margin-top: 30px;
}


/* Tablet */
@media(min-width: 768px){

  #lightbulb-fitting {
    width: 530px;
  }

}

/* Desktop */
@media(min-width:992px){

  #lightbulb-fitting {
    width: 698px
  }

}

/* Large Desktop */
@media(min-width:1200px){

  #lightbulb-fitting {
    width: 850px
  }

}


