chrome-extensions-samples/apps/samples/multicast/index.css

div, ul, li, input, button {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-user-select: none;
    -webkit-user-drag: none;
    user-select: none;
    user-drag: none;
    min-width: 0;
    min-height: 0;
}

body {
    display: -webkit-flex;
    display: flex;
    -webkit-flex-direction: column;
    flex-direction: column;
    box-sizing: border-box;
    position: fixed;
    width: 100%;
    height: 100%;
    margin: 0;
    font-family: sans-serif;
}

#title-bar {
    position: relative;
    padding: 5px;
    -webkit-app-region: drag;
    display: -webkit-flex;
    display: flex;
    -webkit-align-items: center;
    align-items: center;
    background: #41413e;

}

#title-bar img {
    position: absolute;
    width: 20px;
}

#title {
    display: -webkit-flex;
    display: flex;
    margin-left: 25px;
    margin-top: 1px;
    color: white;
    text-shadow: #000 1px 1px 0;
    height: 20px;
}

input {
    border: 0;
    margin: 0;
}

.list-cnt {
    position: absolute;
    width: 100%;
    height: 100%;
    font-family: monospace;
    line-height: 1.5;
    bottom: 0;
    min-height: 150px;
    overflow: auto;
}

#container {
    display: -webkit-flex;
    display: flex;
    position: relative;
    -webkit-flex: 1;
    flex: 1;
    width: 100%;
    border: 4px solid #41413e;
    border-top: 0;
    overflow: hidden;
}

#main-block {
    display: -webkit-flex;
    display: flex;
    -webkit-flex-direction: column;
    flex-direction: column;
    -webkit-flex: 1;
    flex: 1;
    box-shadow: #CCC 0 0 8px;
    border-right: 1px solid #CCC;
    min-width: 0;
    min-height: 0;
}

#message-container {
    -webkit-flex: 1;
    -webkit-flex-grow: 1;
    -webkit-flex-shrink: 1;
    flex: 1;
    flex-grow: 1;
    flex-shrink: 1;
    position: relative;
    min-width: 0;
    min-height: 0;
    border-bottom: 1px solid #CCCCCC;
    overflow: auto;
    padding: 15px;
    background: #feffd3;
}

#messages {
    font-family: monospace;
    font-size: 13px;
    padding: 0 15px;
    color: #444;
    list-style: none;
}

#messages * {
    -webkit-user-select: text;
    -webkit-user-drag: text;
}

.help-text {
    border: 1px solid #CCC;
    border-radius: 8px;
    margin-top: 7px;
    padding: 12px;
    padding-left: 25px;
    background: rgba(255,255,255,0.3);
    overflow: hidden; /* This helps constraint the selection highlights. */
}

#messages .help {
    margin-left: -14px;
}

#messages .help > ul {
}

#messages .help > ul > li {
    margin-left: 0;
}

#messages .hide-help > ul {
    display: none;
}

#messages > li {
    text-indent: 0;
    margin-bottom: 6px;
    -webkit-user-drag: none;
}

#messages li.info {
    color: #494;
    margin-left: -14px;
}

#messages li.warning {
    color: #B89D11;
    font-weight: bold;
}

#messages li.error {
    color: #b82a05;
    font-weight: bold;
}

#messages li pre {
    margin: 0;
    word-wrap: break-word;
}

#messages h3 {
    margin-left: -14px;
}

#messages li h4 {
    margin: 7px;
    margin-top: 15px;
    margin-left: -14px;
}

#input-panel {
    position: relative;
    height: 150px;
    background: #EEE;
    border-top: 1px solid white;
    padding: 7px;
    display: -webkit-flex;
    -webkit-flex-direction: column;
    -webkit-flex-align: stretch;
}

#input-panel > .text-input {
    -webkit-flex: 1;
    margin: 3px;
    position: relative;
    display: -webkit-flex;
    padding: -3px;
    border: 1px solid grey;
    border-radius: 7px;
    box-shadow: inset #999 0 0 3px;
    background: white;
}

#input-panel > .text-input textarea {
    background: transparent;
    position: absolute;
    top: -3px;
    bottom: -3px;
    left: -3px;
    right: -3px;
    padding: 10px;
    box-sizing: border-box;
    border: 0;
    resize: none;
    outline: none;
    width: 100%;
}

#splitter {
    position: absolute;
    top: -2px;
    left: 0;
    right: 0;
    height: 5px;
    cursor: ns-resize;
}

#client-id-line {
    margin-bottom: 5px;
}

#client-id {
    margin: 3px;
    font-family: monospace;
    background: transparent;
    -webkit-user-select: element;
    display: inline-block;
    font-weight: bold;
}

#client-id[contenteditable] {
    -webkit-user-select: text;
    background: rgba(0, 0, 0, 0.1);
}

#input-box {
    font-family: monospace;
    font-size: 13px;
}

#input-box[readonly] {
    color: grey;
}

#send-text {
    box-sizing: border-box;
    height: 100%;
}

#user-panel {
    width: 150px;
    overflow: auto;
}

#user-list {
    padding: 10px 0;
}

#user-list > li {
    padding: 3px 15px;
    -webkit-user-drag: element;
    user-drag: element;
    user-select: element;
    white-space: nowrap;
}

#close {
    width: 18px;
    height: 18px;
    padding: 0;
    line-height: 0;
    background: #6e6e6b;
    border: 1px solid grey;
    -webkit-user-drag: none;
    -webkit-user-select: none;
    -webkit-app-region: no-drag;
    text-align: center;
    color: white;
    border-radius: 3px;
}

#close:hover {
    background: #a5a5a2;
}