style.css

body {
  
  background-image: url('https://hpc.coventry.domains/test/CU_logo.png'),linear-gradient(#2c5da9, #000000); /* CU logo */
  background-repeat: no-repeat;
  background-attachment: fixed;
  background-position: right top;
  /*background-color: #2c5da9;*/
  color:#cccccc;
  font-family:"Segoe UI Light","Segoe UI","Segoe",Tahoma,Helvetica,Arial,sans-serif;
  margin: 0px;
  position:absolute;
  overflow-x: hidden;
  width:100%;
  
}


html, body {
    height: 100%; margin:0px;box-sizing: border-box;

}



/* spacer */
.empty {width:0px;height:100px;border:none;position:inline}

.footer, .footer > a {
    width:100%;height:20px;
    border:none;
    position:inline;
    color: #80b3ff;
    font-weight: 100;
    font-size:xx-small;
    font-family: 'Raleway';
   text-shadow: 2px 2px 4px #000000;
}

/* links */
a {color:#ffffff;text-decoration: none;font-family: Helvetica; font-size:10pt;vertical-aligm:middle;}

/* outer div with background picture */
.bodydiv {
   height:inherit;
   min-height: 100vh;
   width:100%;
   text-align: center;
   z-index:1;
   background-repeat: no-repeat;
   background-attachment: fixed;
   background-position: left bottom;
   position: relative;
}

.bodydiv::before {
  
  content: "";
  position: fixed;
  top: 0; 
  left: 0;
  width: 100%; 
  height:inherit;
  min-height: 100vh;  
  opacity: .2; 
  z-index: -1;
  background: url('https://hpc.coventry.domains/test/bg.jpeg'); /* background photo */
}

/* forms */

input:hover {opacity:100%;}
input {transition: all .2s;}

input[type=text], select {
  opacity:0.5;
  width: 30%;
  padding: 8px 12px;
  margin: 8px 0;
  display: inline-block;
  border: 1px solid #0047b3;
  border-radius: 6px;outline:none;
  box-sizing: border-box;
  background-color:#80b3ff;

}

form {
    font-size:small;
}

.google { /* google button */

  width: 100px;
  /*background-color: #1d4b8f;*/
  
  color: white;
  padding: 8px 12px;
  margin: 8px 0;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  background-image: url('https://hpc.coventry.domains/test/googlelogo.png');
  background-repeat: no-repeat;
  background-position: center;
  background-origin: border-box;
 /* border:solid #122d59 1px; */
  opacity:0.65;
  border-collapse:separate;
  border-radius:20px;
  background-color: rgba(255,255,255,0.15);
  
}

.duck { /* DuckDuckGo button */

  width: 30px;
  /*background-color: #1d4b8f;*/
  
  color: white;
  padding: 8px 12px;
  margin: 8px 0;
  border: none;
  border-radius: 12px;
  cursor: pointer;
  background-image: url('https://hpc.coventry.domains/test/duck.png');
  background-repeat: no-repeat;
  background-position: center;
  background-origin: border-box;
 /* border:solid #122d59 1px; */
  opacity: 0.65;
  border-collapse:separate;
  border-radius:20px;
  background-color: rgba(255,255,255,0.25);
  
}

input[type=submit]:hover, input[type=button]:hover {
  /*background-color: #003380;*/
   opacity: 1;
   transform: scale(1.2);
   background-color: rgba(25,113,167,0.3);
   
}

::-moz-selection { /* Code for Firefox */
  color: red;
  background: #ffffff;
}

::selection {
  color: red;
  background: #ffffff;
}

input[type=button] {
  
  background-color: #1d4b8f;
  color: white;
  padding: 4px 4px;
  margin: 4px 0;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  font-size:large;

}

/******** form css ends ***********/

/***** main container ******/
.maintable { 
  max-width: calc(80% - 40px);
  display: flex;
  flex-wrap: wrap;
  text-align: left;
  border:solid #162E54 0px;
  border-radius:30px;
  background: rgba(0,0,0,0);
  justify-content: left;
  /*justify-content: space-between;*/
  padding-top: 0px;
  padding-bottom:40px;
  padding-right:0px;
  padding-left:0px;
  box-sizing: border-box;
  row-gap: -10px;
  column-gap: 0;
  margin: 0px -20px 30px -20px;
}


/****** text in each tile *******/
.caption {
    transition: all 1s;
    vertical-align: middle;
    font-size: 10pt;
    width:100%;
    opacity: 1;
    color: #dddddd;
    transition: color .25s;
    text-shadow: 2px 2px 4px #000000;
    position: relative;
    bottom: 0;
}

/****** caption of the groups ********/
.groupcaption {
  position: relative;
  top: 20px;
  left:0px;
  height:15px;
  display: inline-block;
  background: rgba(0,0,0,0.3);
  border-collapse:separate;
  border-radius:16px 16px 0 0;
  padding-top:12px;
  padding-left:15px;
  padding-right:15px;
  color: #80b3ff; /* blue */
  /*color:#91ff00; /* yellow */
  font-weight: 100;
  font-size: normal;
  font-family: 'Raleway';
  text-shadow: 2px 2px 4px #000000;
  /*box-shadow:  3px 3px 15px 3px black;
  clip-path: inset(-25px -25px -0px -25px);*/
  /*z-index:-1;*/
}




.groupcaptiontext {
    
    display: inline-block;
    position:relative;
    top: -8px;
}


/***** group container ******/
.groups {      
    background: rgba(0,0,0,0.3);
    text-align: center;
    vertical-align: middle;
    align-items:left;
    /*z-index:-1;   */
    margin: 0px;
    margin-top:20px;
    border-collapse:separate;
    border-radius:0px 20px 20px 20px;
    /*border: 1px solid #000000;*/
    width: 100%;
    
    color: #dddddd;   
    display: flex;
    /*justify-content: left;*/
    justify-content: space-between;
    padding-top: 25px;
    padding-bottom:20px;
    padding-right:20px;
    padding-left:20px;
    box-sizing: border-box;
    row-gap: 25px;
    column-gap: 20px;
    flex-wrap:wrap;
    /*box-shadow:3px 3px 15px 3px black;*/
    /*clip-path: inset(0px -25px -25px -25px);*/
}


.no_tab_group {      
    background: rgba(0,0,0,0.3);
    text-align: center;
    vertical-align: middle;
    align-items:left;
       
    margin: 0px;
    margin-top:20px;
    border-collapse:separate;
    border-radius:20px;
    /*border: 1px solid #000000;*/
    width: 100%;
    
    color: #dddddd;   
    display: flex;
    justify-content: left;
    justify-content: space-between;
    padding-top: 20px;
    padding-bottom:20px;
    padding-right:20px;
    padding-left:20px;
    box-sizing: border-box;
    row-gap: 25px;
    column-gap: 20px;
    flex-wrap:wrap;
    box-shadow:3px 3px 15px 3px black;
}



/* tiles */

.tiles {
    transition: all .25s;
    
    background: rgba(255,255,255,0.25);
    text-align: center;
    vertical-align: middle;
    align-items:center;
    
    padding: 0 auto; 
    margin: 0px; 
    border-collapse:separate;
    border-radius:20px;

    min-width:130px; 
    max-height:110px;
    min-height: 80px;
    height:110px;

    color:#dddddd;
    
    display: flex;
    justify-content: center;
    flex-wrap: nowrap;
    scale: 1;
   
    /*flex: 1 0 calc(20% - 10px);*/
    box-shadow:3px 3px 15px 3px black;
}


.tiles:hover {
  transform: scale(1.25);
  background: rgba(25,113,167,0.3);
  color:#91ff00;
  border-radius:10px;
  box-shadow:3px 3px 15px 5px rgba(255,255,255,.7);
}

/* inside the tile */
.innertile {
    vertical-align: middle;
    max-height:100px;
    max-width:100px;
    min-width:95%;
    display:block;
    justify-content: center;
    border: 0px solid #ffffff;
    padding:1px 1px 1px 1px;
}

/* change opacity of icon when hovering on innertile */
.innertile:hover .icons {
    opacity: 1;
}
 

/* pictures on tiles */
.icons {
    max-height:70px;max-width:80%;
    border:0px solid #ffffff;
    vertical-align: middle;    
    margin: 2px;
    opacity: 0.6;
    transition: all 0.8s ease-in-out;
}

.icons:hover {
    max-height:70px;max-width:80%;
    border:0px solid #ffffff;
    vertical-align: middle;    
    margin: 2px;
    
   opacity: 1;
   transform: scale(1.15);
   
}



.innertile:hover .caption {
    color:#91ff00;
    
}


/* mobile css */
@media screen and (max-width: 1280px) {
  .maintable {
    max-width: 95%;
  /*  row-gap: 30px;
    column-gap: 3%;*/
    background: rgba(0,0,0,0.0);
  }
  .tiles {
      background: rgba(255,255,255,0.25);
  }
}