body {
    width: 100%;
    height: 100%;
}
html {
    width: 100%;
    height: 100%;
}

#back2Top {
    width: 40px;
    line-height: 40px;
    overflow: hidden;
    z-index: 999;
    display: none;
    cursor: pointer;
    -moz-transform: rotate(270deg);
    -webkit-transform: rotate(270deg);
    -o-transform: rotate(270deg);
    -ms-transform: rotate(270deg);
    transform: rotate(270deg);
    position: fixed;
    bottom: 50px;
    right: 0;
    background-color: #FFF;
    color: #337AB7;
    text-align: center;
    font-size: 30px;
    text-decoration: none;
}
#back2Top:hover {
    background-color: #337AB7;
    color: #FFF;
}
.welcome-section {
    height: 100%;
    padding-top: 75px;    
    background-image: url("../image/blue.jpg");
    background-repeat: no-repeat;
    background-attachment: fixed;
    background-size: cover;
    text-align: left;
	color: white;
}
.webtesting {
    height: 100%;
    padding-top: 75px;
    text-align: center;
    background-image: url("../image/dark.jpg");
    background-repeat: no-repeat;
    background-attachment: fixed;
    background-size: cover;
	color: white;
}
.apitesting {
    height: 100%;
    padding-top: 75px;
    text-align: center;
    background-image: url("../image/blue.jpg");
    background-repeat: no-repeat;
    background-attachment: fixed;
    background-size: cover;
	color: white;
}
.contact-section {
    height: 100%;
    padding-top: 75px;
    text-align: center;    
    color: white;
    background-image: url("../image/dark.jpg");
    background-repeat: no-repeat;
    background-attachment: fixed;
    background-size: cover;
}