html, body {
    font-size: 1.2rem;
}

#main_background {
    background-image: url(../Images/skyscraper1B.jpg);
}

main {
    font-size: 1rem;
}

.ctnr {
    display: grid;
    grid-auto-columns: auto auto auto;
    grid-column-gap: 0.5%;
}

#main_desc {
    grid-area: 1/1/2/4; 
    margin: 1% 3%;
    padding-top: 1%;
    max-width: 900px;
}

#main_desc h1 {
    margin: 0;
    text-align: left;
}

.card {
    color: #ffffff;
    width: 90%;
    max-width: 400px;
    padding: 0% 5%;
    background: rgba(34, 94, 134, 0.85);
    border-radius: 10px;
    grid-row: 2;
    margin: 1% 0;
    margin-bottom: 2%;
}

#c1 {
    justify-self: end;
}

#c2 {
    justify-self: center;
}

#c3 {
    justify-self: start;
}

.card ul {
    padding-left: 5%;
}

 /* The Modal (background) */
.modal {
  position: absolute; /* Stay in place */
  z-index: 1; /* Sit on top */
  left: 0;
  top: 0;
  margin: 8% 8%;
  width: 80%; /* Full width */
  height: auto; /* Full height */
  overflow: auto; /* Enable scroll if needed */
  background-color: rgba(215, 231, 243, 0.95);
  box-shadow: 0 4px 8px 0 rgba(0,0,0,0.2),0 6px 20px 0 rgba(0,0,0,0.19);
  animation-name: animatetop;
  animation-duration: 0.4s;
}

/* Modal Content/Box */
.modal_content {
    padding-top: 3%;
}

.cc_ptr_up {
    color: #ffffff;
    position: absolute;
    top: 0;
    right: 0;
    float: right;
    z-index: 1;
    font-size: 24px;
    font-weight: bold;
    padding-top: 2%;
    padding-right: 3%;
}


.cc_ptr_up:hover,
.cc_ptr_up:focus {
  color: black;
  text-decoration: none;
  cursor: pointer;
}

.button1 {
  background-color: #2f4c76;
  color: white;
  margin: 1em;
  padding: .5em 1em;
  text-decoration: none;
  text-transform: uppercase;
  -webkit-transition-duration: 0.4s; /* Safari */
  transition-duration: 0.4s;
  float: right;
  vertical-align: bottom;
  /* padding-top: 1%;
  padding-bottom: 1%;
  padding-right: 2%;
  padding-left: 2%; */
}

.button1:hover {
  background-color: #4CAF50; /* Green */
  color: white;
}

/* Add Animation */
@keyframes animatetop {
  from {top: -300px; opacity: 0}
  to {top: 0; opacity: 1}
}

@media all and (-ms-high-contrast: none), (-ms-high-contrast: active) {
    .ctnr {
        display: -ms-grid;
        -ms-grid-columns: .5fr 4fr .5fr 4fr .5fr 4fr .5fr;
        background: url(../Images/skyscraper1B.jpg) no-repeat 0 0;
    }
    #main_desc {
        -ms-grid-row: 1;
        -ms-grid-column: 1;
        -ms-grid-column-span: 4;
    }
    #c1 {
        -ms-grid-row: 2;
        -ms-grid-column: 2;
    }
    #c2 {
        -ms-grid-row: 2;
        -ms-grid-column: 4;
    }
    #c3 {
        -ms-grid-row: 2;
        -ms-grid-column: 6;
    }
}