.math-chem-fields { border: 1px solid red; font-size: 1.7rem; } #rendering-area-container { min-height: 50px; border: 1px solid red; border-radius: 5px; display: flex; align-content: center; justify-content: center; } .rendering-areas { font-size: 1.7rem; min-height: 50px; display: inline-block; }