style.css

*{
    padding: 0;
    margin: 0;
    font-family: 'Poppins', sans-serif;
}
h2{
    font-size: 28px;
    font-weight: 450;
    text-align: center;
}
.header{
    min-height: 100vh;
    width: 100%;
    background-image: linear-gradient(rgba(4,9,30,0.7),rgba(4,9,30,0.7)),url(images/home.jpg);
    background-position: center;
    background-size: cover;
    position: relative;
}
.head-about{
    width: 100%;
    background-color: darkgrey;
    background-position: center;
    background-size: cover;
}

.images{
    width: 30%; 
    align-items: center;
    margin: auto;
}

nav{
    display: flex;
    padding: 2% 6%;
    justify-content: space-between;
    align-items: center;
    color: #000;
}
nav img{
    width: 150px;
}
.nav-links{
    flex: 1;
    text-align: right;
}
.nav-links ul li{
    list-style: none;
    display: inline-block;
    padding: 8px 12px;
    position: relative;
}
.nav-links ul li a{
    color: #fff;
    text-decoration: none;
    font-size: 13px;
}
.nav-links ul li::after{
    content: '';
    width: 0%;
    height: 2px;
    background: #f44336;
    display: block;
    margin: auto;
    transition: 0.5s;
}
.nav-links ul li:hover::after{
    width: 100%;
}
.text-box{
    width: 90%;
    color: #fff;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
}
.text-box h1{
    font-size: 62px;
}
.text-box p{
    margin: 10px 0 40px;
    font-size: 14px;
    color: #fff;
}
.hero-btn{
    display: inline-block;
    text-decoration: none;
    color: #fff;
    border: 1px solid #fff;
    padding: 12px 34px;
    font-size: 13px;
    background: transparent;
    position: relative;
    cursor: pointer;
}
.hero-btn:hover{
    border: 1px solid #f44336;
    background: #f44336;
    transition: 1s;
}
nav .fa{
    display: none;
}

@media(max-width:700px){
    .text-box h1{
        font-size: 20px;
    }
    .nav-links ul li{
        display: block;
    }
    .nav-links{
        position: fixed;
        background: #f44336;
        height: 100vh;
        width: 200px;
        top: 0;
        right: -200px;
        text-align: left;
        z-index: 2;
        transition: 0.8s;
    }
    nav .fa{
        display: block;
        color: #fff;
        margin: 10px;
        font-size: 22px;
        cursor: pointer;
    }
    .nav-links ul{
        padding: 30px;
    }
}

/* campus */
h1{
    font-size: 36px;
    font-weight: 600;
}
p{
    color: #1d1d1d;
    font-size: 14px;
    font-weight: 300;
    line-height: 22px;
    padding: 10px;
}
.row{
    margin-top: 5%;
    display: flex;
    justify-content: space-between;
}
h3{
    text-align: center;
    font-weight: 600;
    margin: 10px 0;
}
@media(max-width:700px){
    .row{
        flex-direction: column;
    }
}
.about{
    width: 80%;
    margin: auto;
    text-align: center;
}
.about-col{
    flex-basis: 32%;
    border-radius: 10px;
    margin-bottom: 30px;
    margin-left: 30px;
    position: relative;
    overflow: hidden;
}

.about-col img{
    width: 100%;
    display: block;
}
.layer{
    background:transparent;
    height: 100%;
    width: 100%;
    position: absolute;
    top: 0;
    left: 0;
    transition: 0.5s;
}
.layer:hover{
    background: rgba(163, 163, 163, 0.7)
    
}
.layer h3{
    width: 100%;
    font-weight: 500;
    color: grey;
    font-size: 26px;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    position: absolute;
    transition: 0.5s;
}
.layer:hover h3{
    color: white;
    bottom: 49%;
    opacity: 1;
}

@media (min-width: 1200px) {
  .container, .container-lg, .container-md, .container-sm, .container-xl {
    max-width: 700px;
  }
}

#background-img{
  background-image: url("images/bg.jpg");
  background-size: cover;
  background-position: center;
  position: fixed;
  top: 0;
  left: 0;
  height: 100%;
  width: 100%;
  z-index: -1;
}

#container {
  z-index: 1;
}

#jam {
  width: 3rem;
  text-align: right;
}

.button {
	width: 250px;
	height: 65px;
	font-size: 1.3rem;
	background-color: #d3d3d3;
	border: none;
	outline: none;
	color: white;
	border: 2px solid #0245fd;
	border-radius: 50px;
	cursor: pointer;
	font-family: 'Sriracha', cursive;
	transition: all 0.4s;
	margin-top: 5px;
	margin-bottom: 5px;
	margin-left: 5px;
}

.button:hover{
	box-shadow: inset 0 0 0 5px #0245fd;
}