.image-gallery {
    margin-bottom: 20px; /* Add spacing between galleries */
  }
  .image-container {
    position: relative;
  }
  .image {
    display: none;
    cursor: pointer;
  }
  .active {
    display: block;
    z-index:-1;
  }
  .keyboard1 {background-color: #ffffff}
  .math {background-color: #ffb84a;font-weight:bold}
  .categoryUIcontrols{background-color: rgb(255, 241, 118);}
  .categoryData{background-color: rgb(211,233,101);}
  .categoryControl{background-color: rgb(100, 181, 246);}
  .categoryMath{background-color: #ffb84a;}
  .categoryFunctions{background-color: rgb(104,217,149);}
  .categoryVariables{background-color: rgb(187,119,199);}
  .userInput{font-weight: bold; font-family: 'Courier New', Courier, monospace;background-color: white;}
  .image300   {
    max-width: 300px;
      }
   .image200   {
    max-width: 200px;
      }