.container-header {
position: relative;
margin: 0 25px 0 25px;
overflow: visible;
}
.container-header::after {
content: "";
display: block;
position: absolute;
left: 0;
right: 0;
top: 0;
bottom: 0;
width: 100%;
height: 100%;
background: #0fd;
transform: skew(-20deg);
}
.container-header-inner {
position: relative;
z-index: 1;
line-height: 40px;
font-size: 125%;
text-align: center;
}