Span data is not displaying the in single line

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Javascript

HTML5

I am changing the span data dynamically,Then i am not getting the out in single line.
I need all the data in single line only

one scenario:

document.getElementById("_nextRefresh1").innerHTML = "seconds.";
document.getElementById("_nextRefresh").style.display = "block";
document.getElementById("Span1").innerHTML = "Item list will auto-refresh in.";
document.getElementById("Cancel").style.display = "none";


2nd scenario:

document.getElementById("_nextRefresh1").innerHTML = "";
document.getElementById("_nextRefresh").style.display = "none";
document.getElementById("Span1").innerHTML = "Auto-refresh is turned off while results are sorted.";
document.getElementById("Cancel").style.display = "block";

What I have tried:

<asp:Panel>
<span id='Span1'></span>
<span id='_nextRefresh'>60</span>
<span id='_nextRefresh1'></span>

</asp:Panel>