mediaquery.css

@charset "UTF-8";
* {
    margin: 0px;
    padding: 0px;
    overflow: hidden;
}
/* demais telas */
@media screen and (min-width:768px) {
    html, body {
        display: flex;
        flex-direction: column;

        align-items: center;
        justify-content: center;
    
        font-family: Arial, Helvetica, sans-serif;
        background-color: blanchedalmond;
    
        border: 2px solid black;
        width: 100vw;
        height: 100vh;
    }
    
    #sectionContainer {
        width: 400px;
        height: 600px;
        border-radius: 40px;
    
        background-color: brown;
        box-shadow: 1px 1px 6px 3px rgb(82, 42, 42);
        
        display:flex;
        flex-direction: column;
        justify-content: space-evenly;
        align-items: center;
    }
    
    h1 {
        font-size: 3em;
    }
    
    #countLabel {
        font-size: 10em;
    }
    
    .btn {
        border-radius: 10px;
        background-color: rgb(0, 0, 0);
        color: white;
        box-shadow: 0px 2px 4px 1px black;
    
        margin: 5px;
        padding: 10px;
        font-size: 20px;
    } 
    .btn:hover {
        cursor: pointer;
        background-color: rgb(61, 61, 61);
        transition:background-color 0.2s;
    }
    
}