@media only screen and (max-width: 400px) { .mob { width:50%; margin-left:60px;} .desk {display: none;} } @media only screen and (min-width: 401px) { .desk { width:40%; margin-left:120px;} .mob {display: none;} } Promax Lean bars are the ideal high protein snack bar to take before training to give you increased focus and alertness or they can also be taken after exercise to support muscle recovery and your lean definition goals.