:root {
    --c1: #FFFFFF;
    --c2: #000000;
    --c3: #0a83ed;
    --c4: #ff0000;
    --c5: #00ff11;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    align-items: center;
}

.tab {
    align-items: center;
}

.tab_index {
    align-items: center;
    margin: auto;
    width: 30%;
}

.tab_main {
    align-items: center;
    margin-left: auto;
    margin-right: auto;
    width: 50%;
}

.center {
  margin: 0;
  position: absolute;
  top: 50%;
  left: 50%;
  -ms-transform: translate(-50%, -50%);
  transform: translate(-50%, -50%);
}

.button {
    width: 150px;
    background-color: #FFFFFF;
    color: #0a83ed;
    border: 2px solid #0a83ed;
    border-radius: 8px;
    padding: 10px 10px;
    text-align: center;
    text-decoration: none;
    display: inline-block;
    font-size: 16px;
    margin: 2px 2px;
    transition-duration: 0.3s;
    cursor: pointer;
    overflow: hidden;
}

.active, .button:hover {
    background-color: #0a83ed;
    color: #FFFFFF;
}

.chart-wide {
    align-items: center;
    margin: auto;
    width: 50%;
    height: 400px;
}

.inline { 
    display: inline-block; 
    align-items: center;
    margin-left: auto;
    margin-right: auto;
    -ms-transform: translate(-50%, -50%);
    transform: translate(-50%, -50%);
}

#footer {
    position: absolute;
    bottom: 5px;
    width: 99%;
    height: 50px;
    text-align: center;
    font-size: 12px
}