html, body {
	position: relative;
	width: 100%;
	height: 100%;
}

body {
	color: #333;
	margin: 0;
	padding: 8px;
	box-sizing: border-box;
	font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen-Sans, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
}

a {
	color: rgb(0,100,200);
	text-decoration: none;
}

a:hover {
	text-decoration: underline;
}

a:visited {
	color: rgb(0,80,160);
}

label {
	display: block;
}

input, button, select, textarea {
	font-family: inherit;
	font-size: inherit;
	padding: 0.4em;
	margin: 0 0 0.5em 0;
	box-sizing: border-box;
	border: 1px solid #ccc;
	border-radius: 2px;
}

input:disabled {
	color: #ccc;
}

input[type="range"] {
	height: 0;
}

button {
	color: #333;
	background-color: #f4f4f4;
	outline: none;
}

button:disabled {
	color: #999;
}

button:not(:disabled):active {
	background-color: #ddd;
}

button:focus {
	border-color: #666;
}
.inputs {
	text-align: right; width: 2em; border: none; outline: none;
}

input:focus {
	outline: none;
}

.primary-button {
	cursor: pointer;
    border: none;
	background-color: dodgerblue;
	color: white
}

.button {
    cursor: pointer;
	background-color: white;
}

input[type=number]::-webkit-inner-spin-button,
input[type=number]::-webkit-outer-spin-button {
	-webkit-appearance: none;
	margin: 0;
}

input[type=number] {
    -moz-appearance:textfield;
}

.problem {
	font-size: 3em;
}

.problem input[type=number] {
	border: none;
}


/* borrowed from https://stackoverflow.com/a/15991184/4386191 */
.nuhuh {
    animation: shake .5s linear;
}

@keyframes shake {
    8%, 41% {
    transform: translateX(-10px);
}
        25%, 58% {
    transform: translateX(10px);
}
75% {
    transform: translateX(-5px);
}
92% {
    transform: translateX(5px);
}
0%, 100% {
    transform: translateX(0);
}
}