body { background: #eaf5ff; }
.navbar .container-fluid { padding: 7px 15px; max-width: 600px; }
.bold { font-weight: bold; }
.btn-round       { border-radius: 30px; padding: 6px 9px; margin-right: 10px; }
.btn-round-right { border-radius: 30px; padding: 6px 9px; margin-left: 10px; float: right; }
.btn-input-close { font-size: 20px; font-weight: bold; }
form .input-group { max-width: 600px; }
.main-contents { max-width: 600px; margin-left: auto; margin-right: auto; }
.main-contents table { max-width: 600px; margin-bottom: 90px; }
.main-contents table#lists td { vertical-align: middle; padding: 12px; }
.main-contents table#items td { vertical-align: middle; line-height: 1.2; }
.gray { color: #c0c0c0; }
.keskel {
    height: 70vh;
    display: flex;
    align-items: center;
    justify-content: center;
}