.pmlm-tree-node {
    transition: all 0.3s ease;
}

.pmlm-tree-node:hover {
    transform: scale(1.05);
}

.pmlm-tree-line {
    animation: pulseLine 2s infinite;
}

@keyframes pulseLine {

    0% {
        opacity: 0.3;
    }

    50% {
        opacity: 1;
    }

    100% {
        opacity: 0.3;
    }

}

.pmlm-tree ul {
    padding-top:20px;
    position:relative;
    transition:.5s;
}

.pmlm-tree li {

    float:left;
    text-align:center;
    list-style:none;
    position:relative;
    padding:20px 5px 0 5px;

}

.pmlm-tree li::before,
.pmlm-tree li::after {

    content:'';
    position:absolute;
    top:0;
    right:50%;
    border-top:2px solid #ccc;
    width:50%;
    height:20px;

}

.pmlm-tree li::after {

    right:auto;
    left:50%;
    border-left:2px solid #ccc;

}

.pmlm-tree li:only-child::after,
.pmlm-tree li:only-child::before {

    display:none;

}

.pmlm-tree li:only-child {

    padding-top:0;

}

.pmlm-tree li:first-child::before,
.pmlm-tree li:last-child::after {

    border:none;

}

.pmlm-tree li:last-child::before {

    border-right:2px solid #ccc;
    border-radius:0 5px 0 0;

}

.pmlm-tree li:first-child::after {

    border-radius:5px 0 0 0;

}

.pmlm-tree ul ul::before {

    content:'';
    position:absolute;
    top:0;
    left:50%;
    border-left:2px solid #ccc;
    width:0;
    height:20px;

}

.pmlm-tree li a {

    border:1px solid #ddd;
    padding:10px 20px;
    display:inline-block;
    border-radius:8px;
    background:#fff;
    font-weight:600;
    text-decoration:none;
    min-width:120px;

}

.pmlm-tree li a.empty {

    background:#f5f5f5;
    color:#999;

}

.pmlm-join-card{
    max-width:700px;
    margin:0 auto;
    text-align:center;
}

.pmlm-join-card input[type="text"],
.pmlm-join-card input[type="number"]{

    width:300px;
    height:50px;
    padding:10px;
}

.pmlm-side-select{

    margin:30px 0;
}

.pmlm-side-select label{

    margin:0 30px;
    font-size:28px;
}

.pmlm-side-select input{

    width:24px;
    height:24px;
}

.pmlm-join-btn{

    background:#00843d;
    color:#fff;
    border:none;
    padding:15px 50px;
    font-size:24px;
    cursor:pointer;
}