
      font-size: 18px;
      padding: 0 10px;
      background-color: #4F7DC9;
      color: #FFF;
      transition: height 0.2s;
    }
    
    .core-header.tall {
      height: 180px;
    }
    
    .core-header.medium-tall {
      height: 120px;
    }

    .content {
      height: 2000px;
      background: linear-gradient(rgb(214, 227, 231), lightblue);
    }

  </style>

</head>

<body unresolved>

  <core-header-panel>
    <div class="core-header">standard</div>
    <div class="content"></div>
  </core