main img {

    display: block; 
    margin-left: auto;
    margin-right: auto;
}

.ArtHeadbar {

    width: 55%;  
}

#Redox{
  width: 55%;
} 

#LMCT {
    width: 65%;
}

#LMCTeasy {

    width: 35%;
}

#MLCT {
    width: 35%;
}

#Ferroin {
    width: 20%;
    
}

#MMCT{
    width: 35%;

}


@media all and (max-width: 700px) {


            #Headbar {

                width:90%;
            }

            #Ylidsmall{

                width: 70%;
            } 

            #Redoxsmall {

                width: 90%;
            }

            #LMCTsmall {

                width: 90%;
            }

            #LMCTeasy {

                width: 90%;
            }

            #MLCT {

                width: 90%;
            }

            #Ferroin {

                width: 80%;
            }

            #MMCTsmall {

                width: 95%;
            }

}