.header{
    height: 60px;
    width:100%;
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: #7EC0EE;
    color:white;
    font-weight: bold;
    font-size: 24px;
    text-align: center;
    z-index: 3000;
    top: 0;
    right: 0;
    left: 0;
    position: relative;
}