.div-lang {
    text-align: start;
}

.activity-div {
    display: flex;
    flex-wrap: nowrap;
    justify-content: space-between;
}

.card-primary:not(.card-outline) > .card-header {
    background-color: #d81921;
    border-bottom-left-radius: 15px;
    border-bottom-right-radius: 10px;
}
.btn-primary,
.btn-primary.focus,
.btn-primary:focus {
    color: #fff;
    background-color: #d81921;
    border-color: #c31821;
}
.btn-primary:hover {
    color: #fff;
    background-color: #9f0e16;
    border-color: #c31821;
}

.btn-primary:not(:disabled):not(.disabled):active,
.show > .btn-primary.dropdown-toggle {
    color: #fff;
    background-color: #9f0e16;
    border-color: #c31821;
}