body
{
    margin: 0;
    padding: 0;
    font-family: sans-serif;
    background: url("../images/bg8.jpg") no-repeat center center fixed;
    -webkit-background-size: cover;
    -moz-background-size: cover;
    -o-background-size: cover;
    background-size: cover;

}

.box
{
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 400px;
    padding: 40px;
    background: rgba(0,0,0,.8);
    box-sizing: border-box;
    box-shadow: 0 15px 25px rgba(0,0,0,.5);
    border-radius: 10px;
}

.box h2
{
    margin: 0 0 30px;
    padding: 0;
    color: #fff;
    text-align: center;
}

.box .inputBox
{
    position: relative;
}

.box .inputBox input
{
    width: 100%;
    padding: 10px;
    font-size: 16px;
    color: #fff;
    letter-spacing: 1px;
    margin-bottom: 30px;
    border: none;
    border-bottom: solid 1px #fff;
    outline: none;
    background: transparent;
}

.box .inputBox label
{
    position: absolute;
    top: 0;
    left: 0;
    padding: 10px 0;
    font-size: 16px;
    color: #fff;
    letter-spacing: 1px;
    pointer-events: none;
    transition: .5s;
}

.box .inputBox input:focus ~ label,
.box .inputBox input:valid ~ label
{
    top: -18px;
    left: 0;
    color: #03a9f4;
    font-size: 12px;

}

.box input[type="submit"]
{
    /*background: transparent;*/
    border: none;
    outline: none;
    color: #fff;
    background: #03a9f4;
    padding: 10px 20px;
    cursor: pointer;
    border-radius: 5px;
}

.alert
{
    background-color: #b97c74;
    color: #e0e0e0;
    padding: 10px;
    margin-bottom: 30px;
    border-radius: 15px;
}

@media screen and (max-width: 500px)  {
    .box
    {
        width: 90% !important;
    }
}