@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@200;300;400;500;600;700&display=swap');



*{
    margin: 0px;
    padding: 0px;
    box-sizing: border-box;
    font-family: 'Poppins',sans-serif;
}
body{
    height: 100vh;
    width: 100%;
    background-color: #FF676D;
    display: flex;
    align-items: center;
    justify-content: center;
}
.box{
    max-width: 400px;
    width: 100%;
}
.box .search-box{
    position: relative;
    height: 50px;
    max-width: 50px;
    margin: auto;
    box-shadow: 0px 5px 25px rgba(0,0,0,0.25);
    border-radius: 25px;
    transition: all 0.3s ease;
}
#check:checked ~ .search-box{
    
    max-width: 380px;

}
.box .search-box input{
    position: absolute;
    height: 100%;
    width: 100%;
    border-radius: 25px;
    background: #fff;
    border:none ;
    outline: none;
    padding-left: 20px;
    font-size: 18px;
    
}
.box .search-box .icon{
    position: absolute;
    top: 0;
    right: -2px;
    width: 50px;
    background: white;
    height: 100%;
    text-align: center;
    line-height: 50px;
    border-radius: 0 25px 25px 0;
    color: #FF676D;
    font-size: 20px;
    border-radius: 25px;

}


#check:checked ~ .search-box .icon{
    background: #FF676D;
    color: #fff;
    border-radius: 0px 25px 25px 0px;

}
#check{
     display: none;
}