body {
    -ms-user-select:none;
   -moz-user-select:none;
   -webkit-user-select:none;
   -webkit-touch-callout: none;
   -khtml-user-select: none;
    user-select:none;
}

.clock, .cadence {
    margin:auto;
    width: 300px;
    padding:10px;
}

.cadence {
    text-align: center;
}
@keyframes spin { 100% {transform:rotate(-360deg); } }

button {
    padding: 0.5em;
    width: 5em;
    font-size: 120%;
    background: lightblue;
    color:black;
    border: none;
    transition: .5s all;
}

button.pressed {
    background: white;
    color:black;
    transform: scale(1.5);
    font-weight: bold;
    box-shadow: 5px 10px 18px gray;
}

:focus {
    outline: 0;
    outline: none;
}