.ql-container .qlbt-selection-line.qlbt-selection-line-left::before {
    position: absolute;
    left: -2px;
    top: -2px;
    content: '';
    width: 5px;
    height: 5px;
    background-color: #0589f3;
    border-radius: 5px;
}

.ql-container .qlbt-selection-line.qlbt-selection-line-right::before {
    position: absolute;
    right: -2px;
    bottom: -3px;
    content: '';
    width: 5px;
    height: 5px;
    background-color: #0589f3;
    border-radius: 5px;
}

.quill-better-table-wrapper {
    overflow-x: auto;
}

table.quill-better-table {
    table-layout: fixed;
    border-collapse: collapse;
}

table.quill-better-table td {
    border: 1px solid #000;
    padding: 2px 5px;
}

.qlbt-operation-menu {
    background-color: #fff;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
    font-size: 14px;
    z-index: 100;
    overflow: hidden;
}

.qlbt-operation-menu .qlbt-operation-menu-dividing {
    height: 1px;
    background-color: #efefef;
}

.qlbt-operation-menu .qlbt-operation-menu-subtitle {
    color: #999;
    font-size: 14px;
    padding: 5px 16px;
}

.qlbt-operation-menu .qlbt-operation-color-picker {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    padding: 0 16px 10px;
    background-color: #fff;
    overflow: hidden;
}

.qlbt-operation-menu .qlbt-operation-color-picker .qlbt-operation-color-picker-item {
    width: 20px;
    height: 20px;
    border: 1px solid #595959;
    margin-right: 5px;
    margin-bottom: 5px;
    cursor: pointer;
}

.qlbt-operation-menu .qlbt-operation-menu-item {
    display: flex;
    align-items: center;
    padding: 10px 16px;
    background-color: #fff;
    cursor: pointer;
    color: #595959;
    overflow: hidden;
    text-overflow: ellipsis;
}

.qlbt-operation-menu .qlbt-operation-menu-item:hover {
    background-color: #efefef;
}

.qlbt-operation-menu .qlbt-operation-menu-item .qlbt-operation-menu-icon {
    margin-right: 8px;
    height: 20px;
    width: 20px;
    font-size: 0;
}

.qlbt-col-tool {
    position: absolute;
    display: flex;
    align-items: flex-end;
    overflow: hidden;
    z-index: 99;
    height: 16px;
}

.qlbt-col-tool .qlbt-col-tool-cell {
    position: relative;
    background-color: #fff;
    border-top: 1px solid #000;
    border-right: 1px solid #000;
    border-bottom: 1px solid #000;
}

.qlbt-col-tool .qlbt-col-tool-cell:first-child {
    border-left: 1px solid #000;
}

.qlbt-col-tool .qlbt-col-tool-cell-holder {
    position: absolute;
    right: -1px;
    top: 0;
    bottom: 0;
    z-index: 3;
    width: 1px;
    background-color: transparent;
    cursor: ew-resize;
}

.qlbt-col-tool .qlbt-col-tool-cell-holder:hover {
    background-color: #0589f3;
}

.qlbt-col-tool .qlbt-col-tool-cell-holder::before {
    content: "";
    position: absolute;
    top: 0;
    left: -6px;
    display: block;
    width: 8px;
    height: 100%;
}

.qlbt-col-tool .qlbt-col-tool-cell-holder::after {
    content: "";
    position: absolute;
    top: 0;
    right: -6px;
    display: block;
    width: 8px;
    height: 100%;
}

