You child theme’s style.css file has this code on line 200:
.post {
background: #fff;
border-bottom: 1px solid #ccc;
-moz-border-radius: 0;
-webkit-border-radius: 0;
border-radius: 0;
border-top: 1px solid #d8d8d8;
margin-bottom: 5px;
overflow: visible;
padding: 25px 15px 20px 70px; /* Remove this line */
position: relative;
width: 875px; /* Remove this line */
}
Remove the two lines indicated above and that would fix it.
Admin 
