bigcapital/packages/webapp/src/style/components/Postbox.scss

.postbox {
    border: 1px solid #d2dce2;
    background: #FFF;

    &__header {
        border-bottom: 1px solid #d2dde2;
        height: 38px;
        padding-left: 18px;
        align-items: center;
        display: flex;
    }

    &__title {
        vertical-align: middle;
        font-weight: 600;
        font-size: 14px;
    }

    &.is-toggable .postbox__header {
        cursor: pointer;
    }

    &__toggle-indicator {
        margin-left: auto;
        width: 40px;
        text-align: center;
        display: flex;

        &:before {
            content: "";
            width: 0;
            height: 0;
            border-left: 4px solid transparent;
            border-right: 4px solid transparent;
            border-bottom: 6px solid #8ca0b3;
            margin: auto;
        }
    }

    &__title {}

    &__content {

        &-inner {
            padding: 20px;
        }
    }
}