Theme Name: twenty seventeen Child Theme
Theme URI: http://artbyshane.co.uk/themes/twentyseventeen/
Description: twenty seventeen Child theme
Author: Shane Sidlow
Author URI: http://artbyshane.co.uk
Template: twentyseventeen
Version: 1.0

body {
	margin: 0;
}
<!-- Global site tag (gtag.js) - Google Analytics -->
<script async src="https://www.googletagmanager.com/gtag/js?id=G-F7BP8V19MG"></script>
<script>
  window.dataLayer = window.dataLayer || [];
  function gtag(){dataLayer.push(arguments);}
  gtag('js', new Date());

  gtag('config', 'G-F7BP8V19MG');
</script>

/* =Theme customization starts here
------------------------------------------------------- */               
.site-content-contain {
    background-color: #EDEDED;
    position: relative;
}
/*--------------------------------------------------------------
7.0 Formatting
--------------------------------------------------------------*/

hr {
    background-color: #bbb;
    border: 0;
    height: 1px;
    margin-bottom: 1.5em;
}
/* =Typography
------------------------------------------------------- */
body,
button,
input,
select,
textarea {
    color: #717170;
    font-family: "Libre Franklin", "Helvetica Neue", helvetica, arial, sans-serif;
    font-size: 15px;
    font-size: 0.9375rem;
    font-weight: 400;
    line-height: 1.66;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    clear: both;
    line-height: 1.4;
    margin: 0 0 0.75em;
    padding: 1.5em 0 0;
}

h1:first-child,
h2:first-child,
h3:first-child,
h4:first-child,
h5:first-child,
h6:first-child {
    padding-top: 0;
}

h1 {
    font-size: 24px;
    font-size: 1.5rem;
    font-weight: 300;
}

h2,
.home.blog .entry-title {
    color: #666;
    font-size: 20px;
    font-size: 1.25rem;
    font-weight: 300;
}

h3 {
    color: #333;
    font-size: 18px;
    font-size: 1.125rem;
    font-weight: 300;
}

h4 {
    color: #333;
    font-size: 16px;
    font-size: 1rem;
    font-weight: 800;
}

h5 {
    color: #767676;
    font-size: 13px;
    font-size: 0.8125rem;
    font-weight: 800;
    letter-spacing: 0.15em;
    text-transform: uppercase;
}

h6 {
    color: #333;
    font-size: 15px;
    font-size: 0.9375rem;
    font-weight: 800;
}

/* =Theme customization starts here
------------------------------------------------------- */

/*--------------------------------------------------------------
13.3 Regular Content (page background colour)
--------------------------------------------------------------*/

.site-content-contain {
    background-color: #F1F1F1;
    position: relative;
}

.site-content {
    padding: 2.5em 0 0;
}
/*--------------------------------------------------------------
16.1 Galleries (images coded with gallery effect)
--------------------------------------------------------------*/

.gallery-item {
    display: inline-block;
    text-align: left;
    vertical-align: top;
    margin: 0 0 1.5em;
    padding: 0 1em 0 0;
    width: 75%;
}