* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Roboto', sans-serif;
}

section {
    position: relative;
    width: 100%;
    height: 100vh;
    display: flex;
    justify-content: center;
}

    section .img-bg {
        position: relative;
        width: 100%;
        height: 100%;
    }

        section .img-bg img {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

    section .noi-dung {
        display: flex;
        justify-content: center;
        align-items: center;
        width: 80%;
        height: 100%;
    }

        section .noi-dung .form {
            width: 80%;
        }

            section .noi-dung .form h2 {
                color: #607d8b;
                font-weight: 500;
                font-size: 1.5em;
                text-transform: uppercase;
                margin-bottom: 20px;
                border-bottom: 4px solid #4d45ff;
                /*display: inline-block;*/
                letter-spacing: 1px;
                text-align: center;
            }

            section .noi-dung .form .text-danger {
                font-size: 16px;
                color: orangered;
                letter-spacing: 1px;
            }

            section .noi-dung .form .ejs-input-form {
                margin-bottom: 20px;
            }


                section .noi-dung .form .ejs-input-form .e-clear-icon {
                    border-radius: 50%;
                }

                section .noi-dung .form .ejs-input-form span {
                    font-size: 16px;
                    color: #607db8;
                    letter-spacing: 1px;
                }

                    section .noi-dung .form .ejs-input-form span.text-danger {
                        font-size: 16px;
                        color: orangered;
                        letter-spacing: 1px;
                    }

                section .noi-dung .form .ejs-input-form .e-ddl.e-input-group.e-control-wrapper .e-input {
                    padding: 20px 20px;
                    font-size: 16px;
                    letter-spacing: 1px;
                    color: #607d8b;
                    background: transparent;
                    border-radius: 30px;
                }

                section .noi-dung .form .ejs-input-form .e-input-group:not(.e-success):not(.e-warning):not(.e-error), .e-input-group.e-control-wrapper:not(.e-success):not(.e-warning):not(.e-error) {
                    margin-top: 10px;
                    margin-bottom: 5px;
                    border-radius: 30px;
                }

                section .noi-dung .form .ejs-input-form span.e-input-group.e-control-wrapper.e-ddl.e-valid-input {
                    margin-top: 10px;
                    margin-bottom: 5px;
                    margin-top: 10px;
                    border-radius: 30px;
                }


                section .noi-dung .form .ejs-input-form span.e-input-group.e-control-wrapper.e-ddl.e-input-focus {
                    margin-top: 10px;
                    margin-bottom: 5px;
                    margin-top: 10px;
                    border-radius: 30px;
                }

            section .noi-dung .form .input-form {
                margin-bottom: 20px;
            }


                section .noi-dung .form .input-form span {
                    font-size: 16px;
                    /*margin-bottom: 5px;*/
                    display: inline-block;
                    color: #607db8;
                    letter-spacing: 1px;
                }

                    section .noi-dung .form .input-form span.text-danger {
                        font-size: 16px;
                        color: orangered;
                        letter-spacing: 1px;
                    }

                section .noi-dung .form .input-form input {
                    width: 100%;
                    margin-top: 10px;
                    margin-bottom: 5px;
                    padding: 10px 20px;
                    outline: none;
                    border: 1px solid #607d8b;
                    font-size: 16px;
                    letter-spacing: 1px;
                    color: #607d8b;
                    background: transparent;
                    border-radius: 30px;
                }

                    section .noi-dung .form .input-form input[type="submit"] {
                        background: #4d45ff;
                        color: #fff;
                        outline: none;
                        border: none;
                        font-weight: 500;
                        cursor: pointer;
                        box-shadow: 0 1px 1px rgba(0,0,0,0.12), 0 2px 2px rgba(0,0,0,0.12), 0 4px 4px rgba(0,0,0,0.12), 0 8px 8px rgba(0,0,0,0.12), 0 16px 16px rgba(0,0,0,0.12);
                    }

                        section .noi-dung .form .input-form input[type="submit"]:hover {
                            background: #f53677;
                        }

            section .noi-dung .form .nho-dang-nhap {
                margin-bottom: 10px;
                color: #607d8b;
                font-size: 14px;
            }

            section .noi-dung .form .input-form p {
                color: #607d8b;
            }

                section .noi-dung .form .input-form p a {
                    color: #4d45ff;
                }

            section .noi-dung .form h3 {
                color: #607d8b;
                text-align: center;
                margin: 80px 0 10px;
                font-weight: 500;
            }

            section .noi-dung .form .icon-dang-nhap {
                display: flex;
                justify-content: center;
                align-items: center;
            }

                section .noi-dung .form .icon-dang-nhap li {
                    list-style: none;
                    cursor: pointer;
                    width: 50px;
                    height: 50px;
                    display: flex;
                    justify-content: center;
                    align-items: center;
                }

                    section .noi-dung .form .icon-dang-nhap li:nth-child(1) {
                        color: #3b5999;
                    }

                    section .noi-dung .form .icon-dang-nhap li:nth-child(2) {
                        color: #dd4b39;
                    }

                    section .noi-dung .form .icon-dang-nhap li:nth-child(3) {
                        color: #55acee;
                    }

                    section .noi-dung .form .icon-dang-nhap li i {
                        font-size: 24px;
                    }

@media (max-width: 768px) {
    section .img-bg {
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
    }

    section .noi-dung {
        display: flex;
        justify-content: center;
        align-items: center;
        width: 100%;
        height: 100%;
        /*z-index: 1;*/
    }

        section .noi-dung .form {
            width: 100%;
            padding: 40px;
            background: rgba(255 255 255 / 0.9);
            margin: 50px;
        }

            section .noi-dung .form h3 {
                color: #607d8b;
                text-align: center;
                margin: 50px 0 10px;
                font-weight: 500;
            }
}