.container {
    display: grid;
    grid-gap: 10px;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));   /*fr stands for fraction, and here it means 2 columns with both 1fr and 2fr means it'll be 2 tyms larger than 1 fr*/
    grid-template-rows: repeat(4, 1fr);   /*This means repeat 4 tyms 1fr*/
    justify-items: (purposely blank);      Justify-items is for ROW access, and if we use Align-items we get column access
}

.green {
    /* grid-column: 1/3;      This here means it will start at Grid 1 and end before Grid 2 (i.e. at Grid no.2) */
    /* grid-column: 1/-1;        This means that it'll start at 1st Grid and end at the lats Grid(-1) */
    grid-column: span 2;      /*This means it'll span across 2 grids */
    grid-row: 1/3;
}

.zone {
    cursor:pointer;
    /* display:inline-block; */
    text-align: center;
    font-size:10em;
    border-radius:4px;
    border:1px solid #bbb;
    transition: all 0.3s linear;
}

.zone:hover {
    -webkit-box-shadow:rgba(0,0,0,0.8) 0px 5px 15px, inset rgba(0,0,0,0.15) 0px -10px 20px;
    -moz-box-shadow:rgba(0,0,0,0.8) 0px 5px 15px, inset rgba(0,0,0,0.15) 0px -10px 20px;
    -o-box-shadow:rgba(0,0,0,0.8) 0px 5px 15px, inset rgba(0,0,0,0.15) 0px -10px 20px;
    box-shadow:rgba(0,0,0,0.8) 0px 5px 15px, inset rgba(0,0,0,0.15) 0px -10px 20px;
}


/*https://paulund.co.uk/how-to-create-shiny-css-buttons*/
/***********************************************************************
 *  Green Background
 **********************************************************************/
.green{
    background: #56B870; /* Old browsers */
    background: -moz-linear-gradient(top, #56B870 0%, #a5c956 100%); /* FF3.6+ */
    background: -webkit-gradient(linear, left top, left bottom, color-stop(0%,#56B870), color-stop(100%,#a5c956)); /* Chrome,Safari4+ */
    background: -webkit-linear-gradient(top, #56B870 0%,#a5c956 100%); /* Chrome10+,Safari5.1+ */
    background: -o-linear-gradient(top, #56B870 0%,#a5c956 100%); /* Opera 11.10+ */
    background: -ms-linear-gradient(top, #56B870 0%,#a5c956 100%); /* IE10+ */
    background: linear-gradient(top, #56B870 0%,#a5c956 100%); /* W3C */
}

/***********************************************************************
 *  Red Background
 **********************************************************************/
.red{
    background: #C655BE; /* Old browsers */
    background: -moz-linear-gradient(top, #C655BE 0%, #cf0404 100%); /* FF3.6+ */
    background: -webkit-gradient(linear, left top, left bottom, color-stop(0%,#C655BE), color-stop(100%,#cf0404)); /* Chrome,Safari4+ */
    background: -webkit-linear-gradient(top, #C655BE 0%,#cf0404 100%); /* Chrome10+,Safari5.1+ */
    background: -o-linear-gradient(top, #C655BE 0%,#cf0404 100%); /* Opera 11.10+ */
    background: -ms-linear-gradient(top, #C655BE 0%,#cf0404 100%); /* IE10+ */
    background: linear-gradient(top, #C655BE 0%,#cf0404 100%); /* W3C */
}

/***********************************************************************
 *  Yellow Background
 **********************************************************************/
.yellow{
    background: #F3AAAA; /* Old browsers */
    background: -moz-linear-gradient(top, #F3AAAA 0%, #febf04 100%); /* FF3.6+ */
    background: -webkit-gradient(linear, left top, left bottom, color-stop(0%,#F3AAAA), color-stop(100%,#febf04)); /* Chrome,Safari4+ */
    background: -webkit-linear-gradient(top, #F3AAAA 0%,#febf04 100%); /* Chrome10+,Safari5.1+ */
    background: -o-linear-gradient(top, #F3AAAA 0%,#febf04 100%); /* Opera 11.10+ */
    background: -ms-linear-gradient(top, #F3AAAA 0%,#febf04 100%); /* IE10+ */
    background: linear-gradient(top, #F3AAAA 0%,#febf04 100%); /* W3C */
}

/***********************************************************************
 *  Blue Background
 **********************************************************************/
.blue{
    background: #7abcff; /* Old browsers */
    background: -moz-linear-gradient(top, #7abcff 0%, #60abf8 44%, #4096ee 100%); /* FF3.6+ */
    background: -webkit-gradient(linear, left top, left bottom, color-stop(0%,#7abcff), color-stop(44%,#60abf8), color-stop(100%,#4096ee)); /* Chrome,Safari4+ */
    background: -webkit-linear-gradient(top, #7abcff 0%,#60abf8 44%,#4096ee 100%); /* Chrome10+,Safari5.1+ */
    background: -o-linear-gradient(top, #7abcff 0%,#60abf8 44%,#4096ee 100%); /* Opera 11.10+ */
    background: -ms-linear-gradient(top, #7abcff 0%,#60abf8 44%,#4096ee 100%); /* IE10+ */
    background: linear-gradient(top, #7abcff 0%,#60abf8 44%,#4096ee 100%); /* W3C */
}

/***********************************************************************
 *  Purple Background
 **********************************************************************/
.purple {
    background: #A88BEB; /* Old browsers */
    background: -moz-linear-gradient(top, #A88BEB 0%, #F1A7F1 44%, #F8CEEC 100%); /* FF3.6+ */
    background: -webkit-gradient(linear, left top, left bottom, color-stop(0%,#A88BEB), color-stop(44%,#F1A7F1), color-stop(100%,#F8CEEC)); /* Chrome,Safari4+ */
    background: -webkit-linear-gradient(top, #A88BEB 0%,#F1A7F1 44%,#F8CEEC 100%); /* Chrome10+,Safari5.1+ */
    background: -o-linear-gradient(top, #A88BEB 0%,#F1A7F1 44%,#F8CEEC 100%); /* Opera 11.10+ */
    background: -ms-linear-gradient(top, #A88BEB 0%,#F1A7F1 44%,#F8CEEC 100%); /* IE10+ */
    background: linear-gradient(top, #A88BEB 0%,#F1A7F1 44%,#F8CEEC 100%); /* W3C */
}

/***********************************************************************
 *  Brown Background
 **********************************************************************/
.brown {
    background: #f6e6b4; /* Old browsers */
    background: -moz-linear-gradient(top, #f6e6b4 0%, #ed9017 100%); /* FF3.6+ */
    background: -webkit-gradient(linear, left top, left bottom, color-stop(0%,#f6e6b4), color-stop(100%,#ed9017)); /* Chrome,Safari4+ */
    background: -webkit-linear-gradient(top, #f6e6b4 0%,#ed9017 100%); /* Chrome10+,Safari5.1+ */
    background: -o-linear-gradient(top, #f6e6b4 0%,#ed9017 100%); /* Opera 11.10+ */
    background: -ms-linear-gradient(top, #f6e6b4 0%,#ed9017 100%); /* IE10+ */
    background: linear-gradient(top, #f6e6b4 0%,#ed9017 100%); /* W3C */
    filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#f6e6b4', endColorstr='#ed9017',GradientType=0 ); /* IE6-9 */
}