.math-puzzle.is-hidden{display:none}.math-puzzle--answer{margin-top:1.5rem}.math-puzzle .credit{background-color:#34495e;bottom:0;color:#fff;font-size:.75rem;left:0;padding-top:.25rem;position:absolute;right:0;width:100%}.math-puzzle__table{align-items:center;background:#fff;border:.25rem solid #34495e;color:#34495e;display:inline-flex;flex-direction:column;height:18.75rem;justify-content:center;margin-bottom:1.5rem;padding-bottom:1.375rem;position:relative;width:18.75rem}.math-puzzle__table-row{display:flex;justify-content:flex-end;width:calc(100% - 5rem)}.math-puzzle__table-row:last-child{margin-top:.5rem;padding-top:.5rem;position:relative}.math-puzzle__table-row:last-child:before{border-top:.125rem solid #34495e;content:"";display:block;left:0;position:absolute;right:0;top:0;width:calc(100% - .5rem)}.math-puzzle__table-row:last-child:after{content:"+";display:inline-block;font-size:2rem;position:absolute;right:-1.5rem;top:0;transform:translateY(-50%)}.math-puzzle__table-row-item{display:inline-block;font-size:2rem;height:3rem;width:3rem}