.root-html {
    font-size: 10px;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    z-index: 0;
}


.btn.button_normal {
    font-weight: bolder;
    font-size: 1.5rem;
    min-height: 2rem;
    min-width: 14rem;
    background-color: #555555;
    color: #f0f0f0;
    margin: 0.2rem;
    margin-top: 0.4rem;
    margin-bottom: 0.4rem;
}

.btn.button_disabled {
    opacity: 0.4;
    pointer-events: none;
}

.btn.button_normal.button_positive {
    background-color: #00a0ff;
    color: #ffffff;
}

.btn.button_normal.button_negative {
    background-color: #ff8080;
    color: #ffffff;
}

.btn.modal-footer-button {
    margin:0;
}


.title {
    font-size: 2.5rem;
    font-weight: 900;
    margin: 0px;
    margin-top: 1rem;
    margin-bottom: 2rem;
    line-height: 2.5rem;
}

.subtitle {
    font-size: 2rem;
    margin: 0px;
    margin-top: 1rem;
    margin-bottom: 0rem;
}

.text {
    font-size: 1rem;
}

.area {
    width: auto;
    font-size: auto;
}

.list_child {
    border-top: 1px solid rgb(75, 75, 75);
    margin: 0 0px;
    transition: 0.5s;
}

.list_child div {
    background-color: #f0f0f0;
    font-size: 2rem;
    color: #333333;
    font-weight: 700;
    height: 5rem;
}

.card {
    border: 3px solid #333333;
    border-radius: 10px;
    background-color: #f0f0f0;
    font-size: 1.5rem;
    font-weight: bolder;
    margin: 1px;
    padding: 5px;
    display: inline-block;
    vertical-align: top;
    min-width: 25rem;
    width: 98%;
}
.card.future_card {
    background-color: #f9f9f9;
}

.card.past_card {
    background-color: #a0a0a0;
}
.card-title {
    font-size: 2rem;
}

.btn.button_normal.card-button {
    min-width: 10rem;
    font-size: 1.2rem;
}

.textbox {
    font-size: 2rem;
    border-radius: 0.5rem;
}

.table {
    border: 2px solid #000000;
}
.table th,.table td{
    border: 1px solid #000000;
}

@media screen and (min-width:510px) {
    .root-html {
        font-size: 20px;
    }
    .card {
        width: 25rem;
    }
}