*,*:before,*:after{box-sizing:border-box}*{margin:0}body{font-family:Source Sans Pro,Trebuchet MS,Lucida Grande,Bitstream Vera Sans,Helvetica Neue,sans-serif;color:#999}header{margin:1em auto 2em;display:flex;justify-content:center;align-items:center;gap:.3em;font-size:2.5rem}.counter{display:flex;flex-direction:column;justify-content:center;align-items:center;gap:1rem;padding:20px}.count-display{min-width:2em;text-align:center;font-size:6rem;font-weight:700;cursor:pointer;user-select:none;transition:transform .1s;background-color:#fff;color:#000;border:4px solid #999;box-sizing:border-box}.count-display:active{transform:scale(.95);color:#555}.counter ul{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:.5em;align-items:center}.control-row{display:flex;flex-direction:row;gap:.5em}button{min-width:1.5em;padding:.2em .5em;text-align:center;font-size:2rem;background-color:#999;color:#fff;border:none;border-radius:5px;cursor:pointer}button:active{background-color:#777}.diff-text{font-size:1.4rem;color:#333}.history-item{display:flex;align-items:center;gap:10px}