body {
    margin: 0;
    padding: 0;
    overflow: hidden;
}

.login__bg {
    min-width: 100%;
    min-height: 100%;
    position: absolute;
    left: 0;
    top: 0;
    right: 0;
    bottom: 0;
    margin: auto;
}

.login__form {
    position: absolute;
    z-index: 2;
    left: 0;
    top: 0;
    right: 0;
    bottom: 0;
    width: 300px;
    height: 150px;
    padding: 30px;
    margin: auto;
    font-family: Arial;
    font-size: 12px;
    border-radius: 3px;
    border: 1px solid #fff;
    background: rgba(255,255,255,0.7);
}

.login__form:after {
    display: block;
    clear: both;
    content: '';
}

.login__form input {
    height: 30px;
    padding: 0 5px;
    width: 100%;
    margin-bottom: 15px;
    box-sizing: border-box;
}

.login__form input:focus {
    outline: 1px solid #4285F4;
}

.login__form button {
    float: right;
    height: 30px;
    padding: 0 15px;
    margin: 0;
    cursor: pointer;
    border: 1px solid #ddd;
    border-radius: 3px;
    background: #fff;
}