Sidebar Box making

Hey manubmxnsb !

Welcome to WordPress then 🙂
Will do my best here to succeed with your WordPress site
Ok here we go. Go to your dashboard -> appearance -> editor and open the style.css file and paste the following there

#sidebar {
    background: white;
    padding: 20px;
}

and the result will be http://imgur.com/jWSwasc

if you want every section alone of the sidebar

do the same but paste the following code

.widget {
    margin: 0 0 1.5em;
    background: white;
    padding: 20px;
}

and the result will be http://imgur.com/uHgjDuA

let me know how it goes and I will be happy to provide you more help 🙂

Cheers

There are many ways but let’s see if the simplest and easiest one will work for you :

try this plugin : Sticky Menu

hmm ok then , see your style.css file?

look for this section of code

#header {
    width: 100%;
    background: #fff;
    box-shadow: 0 2px 3px rgba(0, 0, 0, 0.14);
    position: relative;
}

simply change the relative value with fixed

then add some padding to #main by pasting the following :

#main {
padding-top: 90px;
}

90px seemed good value to me, ofc you can change it 🙂

Cheers !

Every theme has its own classes and IDs , a solution that works on 1 may not work on the other even because of a simple reason which is difference in class names.

The 2nd theme uses bootstrap framework and in order to get a fixed top header open header.php and look for

<nav class="navbar navbar-default" role="navigation">

then add navbar-fixed-top class to make it look as follow

<nav class="navbar navbar-default navbar-fixed-top" role="navigation">

and in your style.css add

site-content {
    padding-top: 50px;
}