style.css

* {
    margin: 0;
    padding: 0;
    font-family: sans-serif;
}

body {
    background: #e23d3d;
    margin-top: 60px;
}

.head {
    position: fixed;
    left: 0;
    top: 0;
    width: 100%;
    height: 40px;
    padding: 15px;
    background: #e23d3d;
}

.head img {
    float: left;
    width: 40px;
}

.head h1 {
    float: left;
    line-height: 45px;
    margin: 0 10px;
    color: white;
    letter-spacing: 3px;
    text-shadow: 3px 2px 10px #000000;
}

.wrapper {
    width: 90%;
    margin: 90px auto;
}

.wrapper img {
    width: 30%;
    text-align: center;

    /* image center - styles*/
    display: block; 
    margin: auto;
}

.clock {
    width: 30%;
    height: 50px;
    background: #e9e9e9;
    display: block; 
    margin: 30px auto;
    margin-top: 10px;
    font-size: 27px;
    text-align: center;
    border-radius: 20px;
    box-shadow: 0 4px 25px 2px #000000;
}

.controlTime {
    margin: 20px;
    text-align: center;
}

.controlTime input {
    font-family: sans-serif;
    width: 15%;
    height: 50px;
    margin: 0 10px;
    border-radius: 10px;
    border: none;
    transition: all 300ms;
    font-size: 30px;
    color: white;
    letter-spacing: 3px;
    box-shadow: 0 7px 25px 2px #000000;
}

.controlTime input[value="PLAY"]{
    background: #2dc235;
}

.controlTime input[value="PAUSE"]{
    background: #ff2323;
}

.controlTime input:hover {
    transform: translateY(-7px);
}

.footer {
    width: 100%;
    height: auto;
    background: linear-gradient(130deg, #26be2e, #12690a);
    text-align: center;
    border-top: 3px solid #ffffff;
    padding: 5px;
    font-size: 30px;
    color: white;
    box-sizing: border-box;
}

.footer a {
    text-decoration: none;
    font-size: 20px;
    color: white;
    font-weight: bold;
    letter-spacing: 2px;
}