body {
    font-family: Arial, Helvetica, sans-serif;
    background-color: #000c26;
    background: url(../images/welcome.jpg) no-repeat center center fixed;
    -webkit-background-size: cover;
    -moz-background-size: cover;
    -o-background-size: cover;
    background-size: cover;
}

.box {
    min-height: 300px;
    height:auto;
    background-color: rgba(0, 0, 0, 0.3);
    border-radius: 10px;
    position: absolute;
    top: 50%;
    left: 50%;
    margin-top: -100px;
    margin-left: -222px;
    padding-bottom:30px;
}

.data {
    text-align: center;
    color: #fff;
    margin: 40px auto 0 auto;
    width: 100%;
    padding-left: 70px;
    padding-right: 70px;
}

.txt_box {
    color: black;
}

.enter {
    text-align: center;
    color: #fff;
    margin: 0px auto 0 auto;
    padding-left: 70px;
    padding-right: 70px;
    width: 100%;
    font-size: 30px
}