style.css

*{
    margin: 0;
    padding:0;
    font-family: 'Kalam', cursive;
    user-select: none;
}
.background{
    padding-top:10px ;
    background-color: #537895;
    background-image: linear-gradient(315deg, #537895 0%, #09203f 74%);
    background-repeat: no-repeat;
    min-height: 100vh;
}
.title{
    color: rgb(113, 221, 238);
    text-align: center;
    font-size: 40px;
}
.display{
    color:white;
    font-size: 25px;
    text-align: center;
    margin-top: .3em;
    margin-bottom: .3em;
}
.hide{
    display: none;
}
.container{
    margin: 0 auto;
    display: grid ;
    grid-template-columns: 33% 33% 33% ;
    grid-template-rows: 33% 33% 33% ;
    max-width: 300px; 
}
.tile{
    border: 1px solid gray ;
    max-width: 100px ;
    min-height : 100px;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 50px;
    cursor: pointer ;

}
.playerX{
    color: #fbe74d; 
}
.playerO{
    color:#5b94f5 ;
}
.control{
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: row;
    margin-top: 1em;
}
#reset{
    background-color: #ff3860;
    width: 30%;
    color: white;
    padding:8px 15px;
    border:none;
    border-radius: 8px;
    font-size: 20px;
    cursor: pointer;
}
footer{
    margin-top:10px;
    font-size:0.7em ;
    text-align: center;
    color:gray;
}