main.css

* {
    margin: 0;
    padding: 0;
    border: 0;
    list-style: none;
    outline: none;
}
html, body {
    height: 100%;
}
body {
    font-family: sans-serif;
    font-size: 12px;
    color: #303030;
    background-color: #dfddd0;
}
a {
    color: #303030;
    text-decoration: none;
}
a:hover {
    text-decoration: none;
}
input[type="number"]::-webkit-inner-spin-button {
    opacity: 1; /* required for chromium 33+ beta */
    margin-left: 5px;
}
.clear-both {
    clear: both;
}
.left {
    float: left;
}
.right {
    float: right;
}
#main-wrapper {
    padding: 5px 5px 0 5px;
    height: calc(100% - 5px);
}
#port-picker {
    float: left;

    height: 20px;
    margin-bottom: 5px;
}
#port-picker li {
    float: left;
}
#port-picker select {
    height: 20px;
    line-height: 20px;

    float: left;
    margin-right: 5px;

    border: 1px solid silver;
}
#port-picker #port {
    width: 120px;
}
#port-picker #baud {
    width: 80px;
}
#port-picker #delay {
    width: 60px;
}
#port-picker a {
    float: left;

    display: block;

    width: 80px;
    height: 18px;
    border: 1px solid silver;

    line-height: 18px;
    text-align: center;
}
#port-picker a.connect {
    margin-right: 10px;

    background-color: #be2222;
    color: white;

    font-weight: bold;
}
#port-picker a.connect:hover {
    text-decoration: none;
    background-color: #ea3131;
}
#port-picker a.connect.active {
    background-color: #0fab16;
}
#port-picker a.connect.active:hover {
    background-color: #13d81d;
}
#port-picker input.auto_connect {
    float: left;

    margin-top: 4px;
}
#port-picker span.auto_connect {
    float: left;

    margin: 3px 0 0 5px;
}
#sensor-status {
    float: right;

    margin-right: 10px;

    height: 22px;
    line-height: 22px;
}
#sensor-status li {
    float: left;

    padding: 0 12px 0 12px;

    height: 18px;
    line-height: 18px;

    color: white;
    text-align: center;

    border: 1px solid #c0c0c0;
    border-right: 0;

    background-color: #e32424;
}
#sensor-status li:last-child {
    border-right: 1px solid #c0c0c0;
}
#sensor-status .on {
    background-color: #b8cf02;
}
#options {
    float: right;

    width: 20px;
    height: 20px;

    background-image: url('./images/ic_settings_24px.svg');
    background-position: -1px -1px;
    background-repeat: no-repeat;

    opacity: 0.6;
}
#options:hover {
    opacity: 0.7;
}
#options.active {
    opacity: 0.7;
}
#options.active:hover {
    opacity: 0.85;
}
#options-window {
    display: none;
    position: fixed;

    right: 30px;
    top: 15px;

    padding: 5px;

    line-height: 20px;

    border: 1px solid silver;
    background-color: white;
}
#options-window input {
    float: left;

    margin-top: 3px;
    margin-right: 5px;
}
#log {
    margin-bottom: 4px;

    height: 65px;

    border: 1px solid silver;
    background-color: white;

    overflow-y: scroll;
}
#log .wrapper {
    padding: 5px;

    -webkit-user-select: text;
}
#log a {
    font-weight: bold;
}
#log a:hover {
    text-decoration: underline;
}
#tabs {
    position: absolute;
    margin-top: 1px;

    z-index: 10;

    font-weight: bold;
}
#tabs li {
    float: left;
    margin-right: 5px;

    border: 1px solid #848484;
    border-bottom: 0;
}
#tabs li a {
    display: block;

    height: 15px;

    padding: 5px;
    padding-left: 8px;
    padding-right: 8px;

    background-color: #d0d0d0;
}
#tabs li a:hover {
    text-decoration: none;
    background-color: #acacac;
}
#tabs li.active {
}
#tabs li.active a {
    height: 16px;

    background-color: white;
}
#tabs li.active a:hover {
    cursor: default;
    background-color: white;
}
#content {
    margin-top: 31px;
    padding: 10px;

    height: calc(100% - 171px); /* - (port picker, log, tab, status bar) */

    background-color: white;

    overflow-x: hidden;
    overflow-y: auto;

    border: 1px solid #848484;

    -webkit-transform: rotateX(0deg); /* DO NOT REMOVE! this fixes the UI freezing bug on MAC OS X */
}
#status-bar {
    position: fixed;

    bottom: 0px;

    width: calc(100% - 20px);
    height: 20px;
    line-height: 20px;

    padding: 0 10px 0 10px;

    border-top: 1px solid #7d7d79;
    background-color: #bfbeb5;
}
#status-bar div {
    float: left;

    padding-right: 10px;
    margin-right: 10px;

    border-right: 1px solid #7d7d79;
}
#status-bar .version {
    float: right;

    margin: 0;
    padding: 0;
    border: 0;
}
#cache {
    display: none;
}
.data-loading {
    width: 100%;
    height: 100%;

    background-image: url('../images/loading-bars.svg');
    background-repeat: no-repeat;
    background-position: center 45%;
}
.data-loading p {
    position: relative;
    top: calc(45% + 45px);

    text-align: center;
    font-weight: bold;
}
#dialog {
    position: fixed;
    top: 0;
    left: 0;
    border: 1px solid silver;
    background-color: white;
    display: none;
    z-index: 1001;
}
#dialog.review {
    width: 300px;
}
#dialog.review .head {
    line-height: 20px;
    color: white;
    font-weight: bold;
    text-align: center;
    border-bottom: 1px solid silver;
    background-color: #3f4241;
}
#dialog.review .wrapper {
    padding: 5px;
}
#dialog.review p {
    display: none;
    padding: 5px;
    text-align: center;
}
#dialog.review .buttons {
    float: right;
    margin: 5px 0 0 0;
}
#dialog.review .yes,
#dialog.review .no {
    display: block;
    float: left;
    margin: 0 0 0 5px;
    height: 24px;
    line-height: 24px;
    padding: 0 10px 0 10px;
    font-weight: bold;
    border: 1px solid #dddddd;
    background-color: #f1f1f1;
}