body {
    background-color: #212121;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

.divCss {
    width: 320px;
    height: 450px;
    background-color: #5E5E5E;
    position: relative;
    border: 5px inset white;
    border-radius: 40px;
    box-shadow: 0 15px 35px rgba(0,0,0,0.5);
}

.lblGirisCss {
    position: absolute;
    top: 40px;
    width: 100%;
    text-align: center;
    color: #1E2026;
    font-weight: bold;
    font-size: 24px;
}

.txtKullaniciAdiCss, .txtSifreCss {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 240px;
    height: 40px;
    border-radius: 10px;
    border: none;
    border-bottom: 3px solid white;
    background-color: #1E2026;
    background-repeat: no-repeat;
    background-size: 20px;
    background-position: 10px center;
    padding-left: 40px;
    outline: none;
    color: white;
    box-sizing: border-box;
}

.txtKullaniciAdiCss {
    top: 120px;
    background-image: url("../images/user-solid.png");
}

.txtSifreCss {
    top: 190px;
    background-image: url("../images/lock-solid.png");
}

.btnGirisCss {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    top: 270px;
    width: 240px;
    height: 45px;
    border: 2px solid white;
    background-color: #1E2026;
    border-radius: 50px;
    cursor: pointer;
    font-weight: bold;
    color: white;
    transition: 0.3s;
}

    .btnGirisCss:hover {
        background-color: white;
        color: #1E2026;
        transform: translateX(-50%) scale(1.05);
    }

.lblKayitolCss {
    position: absolute;
    bottom: 25px;
    right: 30px;
    color: #1E2026;
    text-decoration: none;
    font-size: 13px;
    font-weight: bold;
}