*{

    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: sans-serif;
}
input{
    display: none;
}
.container{
    width:100%;
    text-align: center;
}
h1{
    font-weight: normal;
    font-size: 35px;
    position: relative;
    margin: 40px 0;

}
h1::before{
    content: '';
    position: absolute;
    width: 100px;
    height: 3px;
    background-color: crimson;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    animation: animate 4s linear infinite;
    
}
@keyframes animate{
    0%{
        width: 100px;
    }
    50%{
        width: 200px;
    }
    100%{
        width: 100px;
    }
}
.top-content{
    background-color: rgb(243, 243, 243);
    width: 90%;
    margin: 0 auto 20px auto;
    height: 60px;
    display: flex;
    align-items: center;
    border-radius: 5px;
    box-shadow: 3px 3px 5px rgb(97, 106, 230);
}
h3{
    height: 100%;
    background-color: rgb(100, 69, 104);
    line-height: 60px;
    padding: 0 50px;
    color:white;

}
label{
    display:inline-block;
    height: 100%;
    margin: 0 20px;
    line-height: 60px;
    font-size: 18px;
    color:gray;
    cursor: pointer;
    transition: .5s;

}
label:hover{
    color: black;


}
.photo-gallery{
    width: 90%;
    margin: auto;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    grid-gap: 20px;

}
.pic{
    position: relative;
    height: 230px;
    border-radius: 10px;
    cursor: pointer;
    transition: 0.5s ease;
    
}
.pic:hover{
    box-shadow: 4px 4px 4px white

}
.pic img{
    width: 100%;
    height: 100%;
    border-radius: 10px;
    transition: .5s;
}

#check1:checked ~ .container .photo-gallery .pic{
    opacity: 1;
    transform: scale(1);
    position: relative;
    transition: .5s;
}
#check2:checked ~ .container .photo-gallery .ASL{
    transform: scale(1);
    opacity: 1;
    position: relative;
   

}
#check2:checked ~ .container .photo-gallery .gestures,
#check2:checked ~ .container .photo-gallery .exp{
opacity: 0;
transform: scale(0);
position: absolute;
transition: .0s;    

}
#check3:checked ~ .container .photo-gallery .gestures{
    transform: scale(1);
    opacity: 1;
    position: relative;
   

}
#check3:checked ~ .container .photo-gallery .ASL,
#check3:checked ~ .container .photo-gallery .exp{
opacity: 0;
transform: scale(0);
position: absolute;
transition: .0s;    

}
#check4:checked ~ .container .photo-gallery .exp{
    transform: scale(1);
    opacity: 1;
    position: relative;
   

}
#check4:checked ~ .container .photo-gallery .ASL,
#check4:checked ~ .container .photo-gallery .gestures{
opacity: 0;
transform: scale(0);
position: absolute;
transition: .0s;    

}