style.css

h1 {
    text-align: center;
    color: blue;    
    background-color: blue;
    border: 5px;
    border-radius: 5px;
    background-size: 25px;
    animation: changecolors 3s alternate infinite;  
    font-family: 'Bebas Neue', cursive;

}
.box {
    background-color: rgb(255, 255, 255);
    width: 150px;
    height: 150px;
    border: 5px solid blue;
    border-radius: 10px;
    flex-direction: row;
    margin: 10px;
    background-size: contain; 
    animation: changecolors 3s alternate infinite;
}

.i {
    display: flex;
    flex-direction: row;
    justify-content: center;

}

.btn  {
display: flex;
justify-content: center;


}

button {
    background-color: blue;
    animation: changecolors 3s alternate infinite;
    font-family: 'Bebas Neue', cursive;
    height: 50px;
    width: 100px;
}

body {
    background-color: grey;
    background-image: url();
}

#displayWinner {
    color: white;
    font-size: 100px;
    font-family: 'Bebas Neue', cursive;
    margin: 200px, 0px, 0px, 0px;
    justify-content: center;
    text-align: center;
    animation:  changedw 3s alternate infinite;
}

@keyframes changecolors {
    0% {color:  white;}
    50%{color: rgb(red, green, blue)}
    100%{color: gold;}
}

@keyframes changedw {
    0% {color:  white; font-size: 25px;}
    50%{color: rgb(red, green, blue)}
    100%{color: gold; font-size: 75px;}}

#btn {
    margin-right: 25px;
}

#reset {
margin-left: 25px;
    }

#list {
     text-align: center;   
    animation: changecolors 3s alternate infinite;  
    font-family: 'Bebas Neue', cursive;

}