.TabButton {
    padding: 12px;
    font-weight: 400;
    font-size: 14px;
    position: relative;
    display: inline-block;
    cursor: pointer
}
.TabButton:after {
    position: absolute;
    bottom: 0;
    width: 0;
    left: 50%;
    content: " ";
    display: block;
    height: 3px;
    background-color: #ff4949;
    transition: width .3s ease, left .3s ease
}
.TabButton.active:after {
    width: 100%;
    left: 0
}
.TabPane {
    display: none;
    max-height: calc(100vh - 193px);
    overflow: hidden;
}
.TabPane.active {
    display: block
}
.TabContainer {
    padding: 0 24px;
    background-color: #222;
    color: #fff;
    white-space: nowrap;
    overflow: hidden;
    position: relative;
}

.Nav {
    display: inline-block;
    white-space: nowrap;
}

.TabLeft {
    position: fixed;
    background: #222;
    padding: 8px;
    left: 0;
    cursor: pointer;
    top: 150px;    
    z-index: 1;
}
.TabRight {
    position: fixed;
    right: 0px;
    top: 150px;
    padding: 11px;
    background: #222;
    z-index: 1;
    cursor: pointer;
}

.TabLeft.hidden, 
.TabRight.hidden {
    display: none;
}
.TabInner {
    display: inline-block;
}