need logo in center of page section excluding left sidebar in squarespace - html

Question

website :https://wells-demo.squarespace.com/
Need logo in center of page section excluding left sidebar(header) in squarespace WELLS template on all format mobile,desktop etc.I am trying to figure out but no result.following is my code
$(document).ready(function(){
$('#headerWrapper #header ').after('<div id="logo1" data-content-field="site-title"><h1 class="logo image" data-shrink-original-size="23" style="letter-spacing: 0.0869565em;"><img src="//static1.squarespace.com/static/5adfd10929711421a9b29d21/t/5adfdbac562fa79909bad158/1524908392416/?format=750w" alt="L ETO BRIDAL" width="130" height=50"></h1></div>');
});
#logo{display:none;}
#headerWrapper{top:4px!important}
#logo1 h1 a img {
height:70px!important;
}
#logo1 {
left: 300%;
position: absolute;
text-align: center !important;
top: 10px !important;
transform: translateX(-50%);

Answer 1

Based on your current CSS, this should do it:
#logo {
width: 100%;
text-align: center;
}
#media (min-width: 801px) {
#logo {
position: fixed;
width: calc(100% - 340px);
top: 0;
margin-left: 240px;
box-sizing: border-box;
background-color: #ffffff85;
padding: .5rem 0;
border-bottom: 1px solid #fff;
}
}
Note: in current form, your question is not really useful to future visitors.

Answer 2

You can read the structure i made below using w3.css from w3schools. I have given a border colour to every div so you can see the boundary of that div and it will make it easy to learn for you.
.outer
{
border:1px solid red;
min-height:100px;
width:100%;
}
.inner-left
{
border:1px solid green;
}
.inner-right
{
border:1px solid blue;
}
.centetr
{
text-align:center;
}
.photo
{
width:95%;
margin:0px auto;
height:40px;
}
<link rel="stylesheet" href="https://www.w3schools.com/w3css/4/w3.css">
<div class="w3-container outer">
<!--left side-->
<div class="w3-quarter inner-left">
<ul>
<li>one</li>
<li>two</li>
<li>three</li>
<li>four</li>
</ul>
</div>
<div class="w3-rest inner-right">
<div class="w3-container w3-margin-bottom centetr">
NAME
</div>
<div class="w3-container">
<div class="w3-half">
<img src="" class="photo">
</div>
<div class="w3-half">
<img src="" class="photo">
</div>
<div class="w3-half">
<img src="" class="photo">
</div>
<div class="w3-half">
<img src="" class="photo">
</div>
</div>
</div>
</div>