*{  
                padding: 0;  
                margin: 0;  
                box-sizing: border-box;  
                font-family: 'verdana', sans-serif;  
           }  
           body{  
                width: 100%;  
                height: 100vh;  
                display: flex;  
                justify-content: center;  
                align-items: center;  
                background-color: #5d6d7d;  
           }  
           .container{  
                max-width: 500px;  
                width: 100%;  
                background-color: #ffff;  
           }  
           .container form{  
                width: 100%;  
                padding: 30px;  
           }  
           .container form .data-insert{  
                width: 100%;  
                padding: 12px 10px;  
                outline: none;  
                border: 1px solid #111;  
                margin: 8px 0px  
           }  
           .container form .sub_btn{  
                width: 100%;  
                padding: 10px 30px;  
                background-color: red;  
                color: #ffff;  
                font-size: 1em;  
                outline: none;  
                border: 0;  
                cursor: pointer;  
           }  
           .container h1{  
                display: block;  
                text-align: center;  
                padding: 15px 0px;  
           }