static/css/style.css

.main-container {
    position: relative;
    width: 100%;
    min-height: 300px;
}

.container {
    width: 300px;
    position: relative;
}


/*tabs*/
.tabs {
    display: flex;
    left: 0;
}

.tab-button {
    display: inline-block;
    background-color: transparent;
    padding: 5px 10px;
    cursor: pointer;
    margin-bottom: -2px;
    border-top: 2px solid transparent;
    border-left: 2px solid transparent;
    border-right: 2px solid transparent;
    border-bottom: 0px;
    border-top-left-radius: 0.5rem;
    border-top-right-radius: 0.5rem;
    color: gray;
}

.tab-button.active {
    background-color: white;
    border-top: 2px solid #dee2e6;
    border-left: 2px solid #dee2e6;
    border-right: 2px solid #dee2e6;
    color: black;
}

/*content*/

.content {
    border: gray;
    border-left-width: 2px;
}

.content-pane {
    display: none;
    padding: 20px;
}

.content-pane.active {
    display: flex;
    -ms-flex-wrap: wrap;
    flex-wrap: wrap;
}

*, :before, :after {
    box-sizing: border-box;
    border-width: 0;
    border-style: solid;
    border-color: #e5e7eb;
}


.flex {
    display: flex;
}

.border-transparent {
    border-color: transparent;
}

.border-b-2 {
    border-bottom: 2px solid #dee2e6;
}

.border-lr-2 {
    border-left: 2px solid #dee2e6;
    border-right: 2px solid #dee2e6;
}