.parallax {
    font-size: 4rem;
    text-align: center;
    position: relative;
    display: flex;
    height: 50vh;
    align-items: center;
    justify-content: center;
	background-position: center;
	background-size: cover;
	background-repeat: no-repeat;
	background-attachment: fixed;
}

.desc {
    padding: 5% 10%;
}

.desc_black {
    background: #282e34;
}

.desc_white {
    color: #000000;
    background: #ffffff;
}

#engineering_services {
    background-image: url(../Images/glass-building-1149726_1920_Tall_B.jpg);
    height: 88vh;
}

h1 {
    font-size: 4rem;
    margin: auto;
}

h3 {
    font-size: 3rem;
    margin: auto;
}


#security_engineering {
    background-image: url(../Images/key-2508940_1920.jpg);
}

#gm_services {
    background-image: url(../Images/technology-3435575_1920.jpg);
}

#data_science {
    background-image: url(../Images/block-chain-3513216_1280.jpg);
}

#integration_development {
    background-image: url(../Images/learning-3245793_1280.jpg);
}

@media all and (-ms-high-contrast: none), (-ms-high-contrast: active) {
   /* IE10+ CSS */
   h1, h3 {
       margin: inherit;
   }
}