*{
    margin: 0; padding: 0; box-sizing: border-box;
    font-family:'Josefin Sans', sans-serif ;
}
header{
    width: 100%; height: 100vh; 
    background-image: linear-gradient(rgba(0,0,0,0.3),rgba(0,0,0,0.3)), url('../images/bd md.jpg');
    background-repeat: no-repeat;
    background-position: center;
    background-size: cover;
}
nav{
    width: 100%; height: 15vh;
    background-color:rgba(0,0,0,0.2);
    color: white; display: flex; justify-content: space-between; 
    align-items: center; 
    text-transform: uppercase;
}
.logo{
    width: 25%; text-align: center;
}
.menu{
    width: 40%; 
    display: flex; justify-content: space-around;
}
.menu a{
    width: 25%;
    text-decoration:none;
    font-weight: bold;
    color: white;
}
.menu a:first-child{
    color:#00b894;
}
main{
    width: 100%;
    height: 85vh;
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center; color: white;
}
section{

}
section h3{
    font-size: 35px; font-weight: 200; letter-spacing: 2px;
    text-shadow: 1px 1px 3px black;
}
section h1{
    font-size: 55px; font-weight: 700; 
    text-shadow: 2px 1px 6px black;
    margin: 30px 0 20px 0;
}
section p{
    font-size: 25px;
    margin-bottom: 25px;
    word-spacing:2px;
    text-shadow: 1px 1px 1px black;
}
section a{
    padding: 12px 30px;
    border-radius: 4px;
    outline:none;
    text-transform: uppercase;
    font-size: 13px;
    font-weight: 500;
    text-decoration: none;
    letter-spacing: 1px;
    transition: all .3s ease;
}
section .btnone{
    background:#fff;
    color: #000;
}
.btnone:hover{
    background:#00b894;
    color: white;
}
section .btntwo{
    background:#00b894;
    color: white;
}
.btntwo:hover{
    background:#fff;
    color: #000;
}
.change_content:after{
    content:'';
    animation: changetext 10s infinite linear;
    color: #00b894;

}
@keyframes changetext{
    0%{content:"Lahore";}
    20%{content:"Karachi";}
    30%{content:"Islamabad";}
    60%{content:"Rawalpindi";}
    80%{content:"Multan";}
    100%{content:"Mianwali";}
}