body {
    font-family: 'Trebuchet MS', sans-serif;
    background-color: #131515
}

.box {
    float: center;
    width: 60%;
    transform: translateY(50%);
    border-radius: 8px;
    background-color: #131515;
    box-shadow: 0 0 15px #000
}

.button {
    display: inline-flex;
    height: 40px;
    width: 150px;
    border: 2px solid #2247eb;
    margin: 20px 20px 20px 20px;
    color: #339989;
    text-transform: uppercase;
    text-decoration: none;
    font-size: .8em;
    letter-spacing: 1.5px;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.center {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.a1 {
    margin-bottom: -100px;
    margin-top: 100px;
}

.a2 {
    margin-top: 220px;
}

.a3 {
    margin-top: 10px;
}

#button-2 {
    position: relative;
    overflow: hidden;
    cursor: pointer;
}

#button-2 a {
    position: relative;
    transition: all .35s ease-Out;
}

#slide {
    width: 100%;
    height: 100%;
    left: -200px;
    background: #3675ffdc;
    position: absolute;
    transition: all .35s ease-Out;
    bottom: 0;
}

#button-2:hover #slide {
    left: 0;
}

#button-2:hover a {
    color: #242222;
}