styles.css

html {
    margin: 0;
}

body {
    margin: 0;
    width: 100vw;
    height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

body > h1 {
    margin-block: 15px;
}

#timer {
    margin-bottom: 10px;
}

#outlineBox {
    position: relative;
    border: 1px solid black;
    width: 750px;
    height: 400px;
}

#clickMe /*Target*/ {
    position: absolute;
    border: 1px solid black;
    background-color: rgb(42, 240, 247);
    width: 50px;
    height: 50px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.hidden {
    display: none !important;
}

.modal {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 70%;
    max-width: 750px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: space-around;
  
    background-color: white;
    padding-inline: 5rem;
    padding-top: 3rem;
    padding-bottom: 1.5rem;
    border-radius: 5px;
    box-shadow: 0 3rem 5rem rgba(0, 0, 0, 0.3);
    z-index: 10;
    text-align: center;

}

.modal button {
    margin-top: 10px;
}

#modalWindowText {
    width: 94%;
}
  
.overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(3px);
    z-index: 5;
}