.container-header {
    position: relative;
  	padding: 10px 0;
    z-index: 10;
    margin-bottom: 20px;
	box-shadow: 0 5px 5px rgba(0, 0, 0, 0.03) inset;
	background: rgb(77,77,77); /* code généré par https://cssgradient.io */
	background: linear-gradient(90deg, rgba(77,77,77,1) 0%, rgba(242,141,44,1) 35%, rgba(77,77,77,1) 100%);  /* code généré par https://cssgradient.io */
}
.container-header .navbar-brand {margin: auto;}