.banner {	
	margin-top:-320px;
	height: 300px;
}

/*Slider*/
.banner .banner-item {
	width: 24%;
}
.slider .slider-item .banner-text {
    width: 800px;
    height: 800px;
}
.slider .slider-item .banner-text {
	margin-top: -300px;
}
header .nav-bar:before {
	width: calc(50% + 20px);
}
header .nav-bar:after {
	width: 50%;
}