.centre {
    text-align:center;
}

.jumbotron{
    /*color:green;*/
    /*background-color:burlywood;*/
    background-image: radial-gradient(blanchedalmond,burlywood,lavender);
}

.cool3dheader {
    position: relative;
    text-transform: uppercase;
    font-family: Verdana;
    font-size: 3em;
    font-weight: 700;
    color: #000000;
    text-shadow: 1px 1px 1px #16bcee, 1px 2px 1px #16bcee, 1px 3px 1px #16bcee, 1px 4px 1px #16bcee, 1px 5px 1px #16bcee, 1px 6px 1px #16bcee, 1px 7px 1px #16bcee, 1px 8px 1px #16bcee, 1px 9px 1px #16bcee, 1px 10px 1px #16bcee, 1px 18px 6px rgba(16,16,16,0.4), 1px 22px 10px rgba(16,16,16,0.2), 1px 25px 35px rgba(16,16,16,0.2), 1px 30px 60px rgba(16,16,16,0.4);
}

.content{
    max-width:500px;
    margin:auto;
}