.loginbox {
    width:100%;
    height: 100%;
}

.logingred {
    position: absolute;
    top: calc(50% - 260px);
    left: calc(50% - 250px);
    margin:20px;
    width:calc(100% - 100px);
    max-width:400px;
    height: 420px;
    padding:30px;
    background-color: rgba(75, 163, 210, 0.5);
    border-radius: 20px;
    border-style: solid;
    border-width: 1px;
    border-color: #ffffff4d;
    color:white;
    text-align: left;
}
.loginboximage {
    display: inline-block;
    width:100%;
    text-align: center;
    margin-bottom:20px;
    margin-top:10px;
}