.main-header {
        text-align: center;
        margin: 1.5em 0 5em;
        padding: 1em;
        text-indent: 0;
        letter-spacing: 0;
        transition-property: text-indent, letter-spacing,;
        transition-duration: 0.7s;
        transform: scale(1,1);
      }
      .header{       
        background-color: #ffffff;
    }
    .header h2{
        color: #ffffff;
        font-size: 24px;
        font-family: 'Poppins', sans-serif;
        text-align: center;
        margin-bottom: 3%;
        background-color: #c00055;
        padding: 8px;
    } 
       .main-header:hover { 
        text-indent: .2rem;
        letter-spacing: .3rem;
        transform: scale(1.3,1.3);
      }
      .title {
        line-height: .2rem;
      }
      span {
        font-weight: 900;
      }
      .caption {
        opacity: 0;
        transition-property: opacity, transform;
        transition-duration: .8s;
      }
      .caption:hover {
        opacity: 1;
        transform: scale(1.2, 1.2); 
      }
      .thumbnail {
        position: relative;
      }
       .thumbnail img {
        transition: transform .8s;
        transform-origin: 0,0;
      }
       .thumbnail:hover img {
        transform: scale(1.2, 1.2);
         overflow: hidden;
      }
      .caption {
        position: absolute;
        top: 0;
          right: 0;
          bottom: 0; 
          left: 0;
          display: flex;
          flex-direction: column;
          justify-content: center;
          align-items: center;
        background: rgba(0,0,0, .65);
        border: 5px solid #00D180;
      }
      .umbrellas{
        border: 5px solid #FFB037;
      }
      .code{
        border: 5px solid #2E2C2D;
      }
   
      .cow {
        border: 5px solid #31490B;
      }
      .beer {
        border: 5px solid #792002;
      }
      .dog{
        border: 5px solid #4E68C1;
      }
      .bike {
        border: 5px solid #4DB74F;
      }
      .caption h3, 
      .caption p {
        color: #fff;
      }
      #popup {
        background: rgba(0, 0, 0, .7);
        width: 100%;
        height: 100%;
        position: absolute;
        top: 0;
        left:0;
        display: none;
      }
      #popup img {
        margin-left: 30%;
        margin-top: 5%;
        width: 40%;
        border: 5px solid #FFF8DC;
        border-radius: 5%;
      }
      #popup p {
        text-align: center;
        font-size: 1.5rem;
        line-height: 3rem;
        color: #fff;
      }
      
      /* Media Query */
      @media (max-width: 768px) {
          .main-header {
          margin: initial;
        }
        .main-header:hover {
        text-indent: .1rem;
        letter-spacing: .1rem;
        transform: scale(1.1,1.1);
      }
          .title {
              line-height: initial;
          }
        .thumbnail:hover img {
          transform: scale(1, 1);
        }
        .caption:hover{
          transform: scale(1,1);
        }
      }
      @media (min-width: 769px) and (max-width: 1040px){
        .main-header:hover {
          text-indent: .1rem;
          letter-spacing: .1rem;
          transform: scale(1.05,1.05);
        }
      }





      /* Start Gallery CSS */
.thumb {
	margin-bottom: 15px;
}
.thumb:last-child {
	margin-bottom: 0;
}
/* CSS Image Hover Effects: https://www.nxworld.net/tips/css-image-hover-effects.html */
.thumb 
figure img {
  -webkit-filter: grayscale(100%);
  filter: grayscale(100%);
  -webkit-transition: .3s ease-in-out;
  transition: .3s ease-in-out;
}
.thumb 
figure:hover img {
  -webkit-filter: grayscale(0);
  filter: grayscale(0);
}