*{
    padding: 0;
    margin: 0;
    box-sizing: border-box;
    font-family: sans-serif;
}

body{
    background-color: #ecf4fb;
}

.img-gallery{
    width: 80%;
    margin: 50px auto 50px;
    grid-template-columns: repeat(auto-fit,minmax(240px,1fr));
    gap: 30px;
}
.img-gallery img{
    width: 100px;
    cursor: pointer;
    transition: 1s;
}
.img-gallery img:hover{
    transform: scale(1.2);
}
.ful-img{
    width: 100%;
    height: 100vh;
    background-color: rgba(0, 0,0, 0.9);
    position: fixed;
    top: 0;
    left: 0;
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 99;
}
.ful-img span{
    position: absolute;
    top: 5%;
    right: 5%;
    font-size: 30px;
    color: #fff;
    cursor: pointer;
}
.ful-img img{
    width: 90%;
    max-width: 600px;
}

.btn4{
    display: inline-block;
    background-color: white;
    text-decoration: none;
    padding: 10px 20px;
    font-size: 20px;
    color:black;
    border-radius: 20px;
    text-decoration: none;
    margin-bottom: 10px;
    
}


.btn5 {

    display: inline-block;
    background-color: white;
    text-decoration: none;
    padding: 10px 20px;
    font-size: 20px;
    color:black;
    border-radius: 20px;
    text-decoration: none;
    margin-bottom: 10px;
    
} 

.btn6{

    display: inline-block;
    background-color:white;
    text-decoration: none;
    padding: 10px 20px;
    font-size: 20px;
    color:black;
    border-radius: 20px;
    text-decoration: none;
    margin-bottom: 10px;
    
    
}









@media screen and (max-width:400px){
    h1{
        text-decoration: underline;
    }
    h1::before{
        display: none;
    }
    h1 span{
        padding: 0;
    }
}