Demo css

/* ====/========        ===== ==/====/
          section title css start
 ====/========        =======/==== */

.section-title h2 {
	margin-bottom: 20px;
}

.section-title p {
	font-size: 18px;
	margin-bottom: 0px;
}

.z-index1 {
	position: relative;
	z-index: 2;
}

@media only screen and (min-width: 768px) and (max-width: 991px) {
	.section-title p br {
		display: none;
	}
}

/* ====/========        ===== ==/====/
           about css start
 ====/========        =======/==== */

.about-area {
	position: relative;
	padding-top: 100px;
}

@media only screen and (min-width: 768px) and (max-width: 991px) {
	.about-area {
		padding-top: 0px;
	}
}

@media (max-width: 767px) {
	.about-area {
		padding-top: 0px;
	}
}

.about-area:after {
	background: url(assets/svg/home1-about.svg) no-repeat;
	position: absolute;
	left: 0;
	top: -235px;
	height: 768px;
	width: 100%;
	content: "";
	z-index: 1;
	background-size: cover;
}

@media only screen and (min-width: 1200px) and (max-width: 2300px) {
	.about-area:after {
		height: 878px;
	}
}

@media only screen and (min-width: 2290px) and (max-width: 3300px) {
	.about-area:after {
		height: 1078px;
	}
}

@media (max-width: 767px) {
	.about-area:after {
		background-position: right;
		top: -70px;
	}
}

.about-single-content h4 {
	font-size: 20px;
	margin-bottom: 18px;
	-webkit-transition: 0.4s;
	transition: 0.4s;
}