.sub-header {
    min-height: 15vh;
    padding-top: 15vh;
    font-family: 'Montserrat', sans-serif;
    text-align: center;
  /*  background-image: linear-gradient(to bottom, #7fffd4, #6dfecc, #58fdc3, #40fcb9, #19fbaf); */
    background-image: linear-gradient(to bottom, #dbdce1, #dbdce1, #aab2b5, #aab2b5, #aab2b5);
}


    font-size: 2em;
    text-transform: uppercase;
}
.sub-header > hr {
    display: inline-block;
    height: 1px;
    border: 0;
    border-top: 2px solid rgb(253, 37, 37);
    margin: 1em 0;
    padding: 0; 
    width: 60%;
    margin-top: -20vh;
}
.row{
    text-align: center;
    margin-top: 20px;
}
.column{
    width: 24%;
    display: inline-block;
    vertical-align: top;
}