.summary {cursor:pointer;}
.summary:before {color:#004891; content:"\2192"; font-weight:500; font-size:22px; font-family:'Arial'; padding-right:12px;} 
.open > .summary:before {content:"\2193"; padding-right:5px;}
.details > :not(.summary) {display:none;}
.open > * {display:block !important;} </style>