You can achieve your layout with CSS by wrapping the fluid div
s in a container with margin-left:150px;
.
Then you must claculate so the sum of fluid div
s width equals 100% :
HTML :
<div class="parent">
<div class="s1"></div>
<div class="fluid_wrap">
<div class="s2"></div>
<div class="s3"></div>
<div class="s4"></div>
<div class="s5"></div>
<div class="s6"></div>
</div>
</div>
CSS :
.parent {
display:block;
width: 100%;
height: 150px;
background-color: white;
box-shadow: 0 0 5px 5px rgba(215, 44, 44, 0.9);
}
.s1 {
width: 150px;
height: 100%;
display: block;
background-color: #00baff;
float: left;
}
.fluid_wrap {
margin-left:150px;
height:100%;
}
.s2 {
width: 17.5%;
height: 100%;
display: block;
background-color: #0090c5;
float: left;
}
.s3 {
width:12.5%;
height: 100%;
display: block;
background-color: #006b93;
float: left;
}
.s4 {
width: 21%;
height: 100%;
display: block;
background-color: #004660;
float: left;
}
.s5 {
width: 21%;
height: 100%;
display: block;
background-color: #002939;
float: left;
}
.s6 {
width: 28%;
height: 100%;
display: block;
background-color: #001720;
float: left;
}