html, body{
    position: relative;
    width: 100%;
    height: 100%;
    margin: 0;
    padding: 0;
}

body{
    text-align: center;
    color: #f8f8f8;
    background: #2c3945;
    font-family: "Noto Sans TC", sans-serif;
    font-optical-sizing: auto;
    font-style: normal;
    font-weight: normal;
}

div{
    margin: 0;
    padding: 0;
}

a{
    text-decoration: none;
}

a:link, a:visited, a:active{
    color: inherit;
}

a{
    width: 40px;
    height: 40px;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 2px 2px 8px rgba(0,0,0,0.05);
}

a>img{
    width: 100%;
    height: 100%;
}

div#background{
    width: 100vw;
    height: 100vh;
    background: #2c3945 no-repeat 50%;
    background-size: cover;
}

div#card{
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 360px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    background:linear-gradient(45deg, RGBA(44, 57, 69,.9), RGBA(44, 57, 69,.85), RGBA(44, 57, 69,.8), RGBA(44, 57, 69,.85), RGBA(44, 57, 69,.9));
    box-shadow: 2px 2px 8px rgba(0,0,0,0.05);
    border-radius: 15px;
    padding-top: 15px;
    padding-bottom: 15px;
    backdrop-filter: saturate(180%) blur(.55em);
    -webkit-backdrop-filter: saturate(180%) blur(.55em);
}

div#card>div{
    width: 330px;
    margin: 15px;
}

div#name{
    font-size: 1.2em;
}

div#buttons{
    display: flex;
    flex-direction: row;
    justify-content: center;
    align-items: center;
}

div#buttons>a{
    margin: 0 0.75em;
}

div#footer{
    color: #DDDDDD;
    font-style: italic;
    font-size: .8em;
}

img#avatar{
    width: 160px;
    height: 160px;
    margin: auto;
    border-radius: 120px;
    object-fit: cover;
}

img#powered_by{
    display: inline-block;
    width: 1.25em;
    height: 1.25em;
    margin-bottom: -.25em;
}