.ribbons-display { margin-left: auto; margin-right: auto; width: 85%; min-height: 60px; background-color: #d3d3d3; text-align: center; border-color: black; border-width: 1px; border-style: solid; } .spacer { height: 50px; } .ribbon-card { float: left; } .mdl-card__media { background-color: transparent; } .clickable { cursor: pointer; } .ribbons { margin-right: auto; margin-left: 0px; display: inline; } .ribbon_selector { margin: auto; }