html, body {
    font-family: "Arial", "メイリオ";
    line-height: 1.7em;
}

table{
    border-collapse:  collapse;
    margin: auto;
    border: 1px solid #ddd;
    white-space: nowrap;
}

tbody{
    -webkit-text-size-adjust: 100%;
}

tr:nth-child(odd){
    background-color:  #eee;
}

th{
    padding: 5px 10px;
    background-color:  #ccc;
}

td{
    padding: 5px 10px;
}

.table_wrapper{
    overflow-x: scroll;
}

.pic{
    display: block;
    margin: auto;
    width: 70vmin;
}

.pic2{
    width: max(30%, min(90vw, 300px));
    height: auto;
}

.box{
    width: min(100vh, 90vw);
    text-align: start;
    margin: 0 auto;
}

h1{
    text-align: center;
    line-height: 1.7em;
}

h2{
    text-align: center;
    margin-top: 2%;
    margin-bottom: 1%;
    padding: 0.2em;
    line-height: 1.7em;
}

h3{
    text-align: center;
    line-height: 1.7em;
    margin-top: 2%;
    margin-bottom: 1%;
    padding: 0.1em;
    line-height: 1.3em;
}

.h3_left{
    font-size: larger;
    font-weight: bold;
    text-align: left;
}

.menu_bar{
    width: 100%;
    height: min(9vw, 60px);
    background-color:  #2D3E50;
    display: flex;
    align-items: center;
    padding: 0%;
    margin: 0%;
}

.menu_a{
    text-decoration: none;
    height: 100%;
    color: white;
    display: table-cell;
    vertical-align: middle;
}

.menu_button{
    width: min(15.8vw, 130px);
    height: min(9vw, 60px);
    background-color:  #2D3E50;
    display: inline-block; 
    text-align: center;
    display: table;
    vertical-align: middle;
    font-size: min(2.5vw, 12pt);
}

.skill_div {
    width: max(30%, min(70vw, 300px));
    overflow: hidden;
    position: relative;
    display: inline-block;
    _display: inline;
    vertical-align: top;
}

.skill_header {
    text-align: center;
    font-weight: bold;
}

.skill_table{
    width: min(200pt, 100%);
}

.eye_catch {
    width: min(45vw, 300px);
    height: min(45vw, 300px);
    overflow: hidden;
    position: relative;
    display: inline-block;
    _display: inline;
    cursor: pointer;
}

.eye_catch .img {
    width: 100%;
    height: 100%;
}

.eye_catch .caption {
    font-size: 100%;
    color: #ffffff;
    padding: 4%;
}

.eye_catch .mask {
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0;
    left: 0;
    opacity: 0;
    background-color: rgba(0,0,0,0.5);
    -webkit-transition: all 0.2s ease;
    transition: all 0.2s ease;
    text-align: center;
    line-height: normal;
    display:flex;
    align-items: center;
    justify-content: center;
}
.eye_catch:hover .mask {
    opacity:1;
}

.youtube {
    width: 100%;
    aspect-ratio: 16 / 9;
    text-align: center;
}
.youtube iframe {
    width: 100%;
    height: 100%;
}