#wrapper {
    overflow: hidden;
}

.center {
    text-align: center;
}

.contents {
    width:1100px;
margin:0 auto;
margin-top:200px;
}

.passContainer {
    text-align: center;
}

input[type="submit"] {
    width: 15%;
    margin: 0 auto;
    color: #ffffff;
    background: #2151d9;
    padding: 1% 0;
    display: flex;
    justify-content: center;
    align-items: center;
    border-radius: 20px;
    border: none;
    box-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
    font-size: 16px;
}

input[type="submit"]:hover {
    opacity: 0.5;
}