.container-center {
    text-align: center;
    margin-top: 50px;
    margin-bottom: 50px;
}



.btn {
    border: none;
    outline: none;
    padding: 12px 16px;
    background-color: var(--light-blue);
    cursor: pointer;
    color: white;
    font-family: 'Quicksand';
    font-weight: 700;
}

.btn-icon {
    padding: 0px 0px;
}

.theme-icon {
    height: 25px;
}

.btn:hover {
    background-color: var(--blue);
    color: white;
}

.btn.active {
    background-color: var(--dark-blue);
    color: white;
}

.link .tooltip {
    position: absolute;
    margin: 0;
    margin-left: 20px;
    margin-top: 2px;
    background-color: gray;
    color: white;
    padding: 4px;
    padding-left: 15px;
    padding-right: 15px;
    border-radius: 5px;
    font-size: 12px;

    opacity: 0;
    pointer-events: none;
    transition: opacity 2s;
}

.link:active .tooltip {
    opacity: 1;
    transition: opacity 0s;
}

@media only screen and (max-width:600px) {

    button {
        font-size: 10px;
    }

    .theme-icon {
        height: 15px;
    }

    .btn {
        padding: 6px 8px;
    }

    .btn-icon {
        padding: 0px 0px;
    }

    .container-center {
        text-align: center;
    }
}