.card {
    width: 90%;
    margin: 0 auto;
    margin-bottom: 5%;
    margin-top: 5%;
}

.card-header{
  border-color: black;
  text-align: center;
}

.navbar{
  min-height: 80px;
}

.nav-link{
  font-size: 125%;
}

/*footer*/
#page-container {
  position: relative;
  min-height: 100vh;
}

#content-wrap {
  padding-bottom: 3rem;    /* Footer height */
}

#footer {
  position: absolute;
  bottom: 0;
  width: 100%;
  height: 3rem;            /* Footer height */
  text-align: center;
  background-color: rgb(48, 48, 48);
}

/*image hover effect*/
.hover_image.container {
  padding-top: 5%;
  position: relative;
  width: 70%;
}

.hover_image.image {
  opacity: 1;
  display: block;
  width: 100%;
  height: auto;
  transition: .5s ease;
  backface-visibility: hidden;
}

.middle {
  transition: .5s ease;
  opacity: 0;
  position: absolute;
  top: 50%;
  left: 40%;
  transform: translate(-50%, -50%);
  -ms-transform: translate(-50%, -50%);
  text-align: left;
}

.container:hover .image {
  opacity: 0.3;
}

.container:hover .middle {
  opacity: 1;
}

/*pictures*/
.prepic2 {
  position: relative;
  transition: transform 0.2s ease-in-out;
}

.prepic2:hover {
  z-index: 99;
  transform: scale(1.2);
  box-shadow: 4px 4px 10px rgba(0, 0, 0, 0.5);
  transition: transform 0.2s ease-in-out;
  opacity: 0.7;
}

.mainPic{
  max-width: 100%;
  height: auto;
  border-radius: 16px;
}