body {
    margin: 0;
}
.btn {
    font-family: Microsoft JhengHei, sans-serif;
    width: 10rem;
    display: inline-block;
    font-weight: 400;
    line-height: 1.6;
    color: #212529;
    text-align: center;
    text-decoration: none;
    vertical-align: middle;
    cursor: pointer;
    -webkit-user-select: none;
    -moz-user-select: none;
    user-select: none;
    background-color: transparent;
    border: 1px solid transparent;
    padding: .375rem .75rem;
    font-size: 0.8rem;
    border-radius: 0.4rem;
    transition: color .15s ease-in-out, background-color .15s ease-in-out, border-color .15s ease-in-out, box-shadow .15s ease-in-out;
}
.btn-success {
    color: #fefefe;
    background-color: #65b731;
    border-color: #65b731;
}
.btn-primary {
    color: #fefefe;
    background-color: #278ece;
    border-color: #278ece;
}
/* default 可自由修改 */
.default {
    position: absolute;
    height: 100%;
    width: 100%;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    display: inline-flex;
}
.default .btn {
    margin: 5px;
}
#qrcode {
    border-radius: 0.5rem;
    border: #333 2px solid;
    padding: 1rem;
}
p {
    width: 100%;
    font-size: 0.9rem;
    font-family: Microsoft JhengHei, sans-serif;
    text-align: center;
}
.default p {
    color: #919191;
}
.qrcode p {
    font-size: 1rem;
    color: #000;
}
.loader {
    text-align: center;
}
.loader > .ball-pulse > point:nth-child(1) {
    -webkit-animation: scale 0.75s -0.24s infinite cubic-bezier(0.2, 0.68, 0.18, 1.08);
    animation: scale 0.75s -0.24s infinite cubic-bezier(0.2, 0.68, 0.18, 1.08);
}
.loader > .ball-pulse > point:nth-child(2) {
    -webkit-animation: scale 0.75s -0.12s infinite cubic-bezier(0.2, 0.68, 0.18, 1.08);
    animation: scale 0.75s -0.12s infinite cubic-bezier(0.2, 0.68, 0.18, 1.08);
}
.loader > .ball-pulse > point:nth-child(3) {
    -webkit-animation: scale 0.75s 0s infinite cubic-bezier(0.2, 0.68, 0.18, 1.08);
    animation: scale 0.75s 0s infinite cubic-bezier(0.2, 0.68, 0.18, 1.08);
}
.loader > .ball-pulse > point {
    background-color: #c2c2c2;
    width: 5px;
    height: 5px;
    border-radius: 100%;
    margin: 2px;
    -webkit-animation-fill-mode: both;
    animation-fill-mode: both;
    display: inline-block;
}
@-webkit-keyframes scale {
    0% {
        -webkit-transform: scale(1);
        transform: scale(1);
        opacity: 1;
    }
    45% {
        -webkit-transform: scale(0.1);
        transform: scale(0.1);
        opacity: 0.7;
    }
    80% {
        -webkit-transform: scale(1);
        transform: scale(1);
        opacity: 1;
    }
}
@keyframes scale {
    0% {
        -webkit-transform: scale(1);
        transform: scale(1);
        opacity: 1;
    }
    45% {
        -webkit-transform: scale(0.1);
        transform: scale(0.1);
        opacity: 0.7;
    }
    80% {
        -webkit-transform: scale(1);
        transform: scale(1);
        opacity: 1;
    }
}