<header class="header">
<div class="container">
</div>
</header>
.header {
height: 600px;
background-color: #ffec7a;
background-position: top left;
clip-path: polygon(0 0, 100% 0, 100% 35%, 0% 100%);
}
.container {
max-width: 1440px;
padding: 0 135px;
}