/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
html, body {
    height: 100%;
}
#header, #sidebar {
    background-color: #282828;
}
#node-list {
    background-color: #181818;
}
.cluster-view {
}
a {
    text-decoration: none !important;
}
.log-view {
}
.btn-circle {
    width: 14px;
    height: 14px;
    text-align: center;
    padding: 0px 0;
    font-size: 9px;
    line-height: 1.428571429;
    border-radius: 15px;
}

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
html, body {
    height: 100%;
}
#header {
    -webkit-app-region: drag;
    background-color: #282828;
}
#sidebar {
    background-color: #282828;
}
#node-list {
    background-color: #181818;
}
.cluster-view {
}
a {
    text-decoration: none !important;
}
.log-view {
}
.btn-circle {
    width: 14px;
    height: 14px;
    text-align: center;
    padding: 0px 0;
    font-size: 9px;
    line-height: 1.428571429;
    border-radius: 15px;
    margin-right: 2px;
}

Make header draggable and add spacing between circle buttons
Make header draggable and add spacing between circle buttons
