< h1> 是块级元素，浏览器通常会显示块级元素在元素之前和之后使用换行符。但是，您可以将其设置为内联或内联块

<h1> is a block-level element, and browsers typically display the block-level element with a newline both before and after the element. However you can make it as inline or inline-block

h1 {
    display: inline;
}

<div><img src="images/ConfigIcon.png"/><h1>System Configuration</h1></div>