* {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }
    body, html {
      width: 100%;
      overflow: hidden;
      touch-action: none; /* 터치 드래그 시 스크롤 방지 */
      user-select: none;
      -webkit-user-select: none;
      background: #C5CAE9;
    }
    
    #trailCanvas {
      display: block;
      width: 300px;
      height: 300px;
      background-color: #303F9F;
      margin: 0 auto;
    }
    #canvasDiv {
        padding: 10px;
    }
    #titleDiv {
        text-align: center;
        height: 60px;
        line-height: 60px;
        background-color: #303F9F;
    }
    img {
        height: 50px;
        margin-bottom:-15px;
    }
    
    
    #btLeft, #btTop {
        display: inline-block;
        height: 80px;
        width: 50%;
        float: left;
    }
    #btRight, #btBottom {
        display: inline-block;
        height: 80px;
        width: 50%;
        float: right;
    }
    button:active {
           transform: translateY(5px); 
           background: #9E9E9E;
        }
    #notiDiv {
        text-align: center;
    }
    
    #dateDiv {
        float: right;
        margin-right: 10px;
    }
    #timeDiv {
        margin-left: 10px;
    }
    br {
        clear: both;
    }