body{font-family:Arial,sans-serif;margin:0;padding:0;}
.header-container,.footer-container{padding:10px;text-align:center;background:#004080;color:white;}
.header-container img.logo{height:50px;}
.tabs{display:flex;flex-wrap:wrap;background:#eee;}
.tablink{flex:1;padding:10px;border:none;cursor:pointer;background:#eee;}
.tablink.active{background:#004080;color:white;}
.tabcontent{display:none;padding:20px;}
.case, .ley{border:1px solid #ccc;padding:10px;margin:10px 0;border-radius:5px;}
input, select{padding:5px;margin:5px 0;width:100%;max-width:300px;}