Yes sure, Please add the below CSS code in the “Additional CSS” box. Go to the Appearance => Customize => Additional CSS.
body.page-template-default .theme-blog.theme-bg-grey {
background-color: #fff !important;
}
body.page-template-default .theme-blog .post {
border: 1px solid transparent;
}
body.page-template-default .theme-blog .post:hover {
-webkit-box-shadow: none;
-moz-box-shadow: none;
box-shadow: none;
}
Let us know if it works.
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Thanks