'Center check boxes with css in cfml page

I'm having a really basic issue with css. It won't let me centre my checkboxes in the middle of the page. The checkboxes are actually coldfusion, but should work the same.

myform.cfml:

.myform {
  position: relative;
  padding: 2rem;
  margin-left: auto;
  margin-right: auto;
}

.checkboxes {
  background-color: blue;
}
<div class="myform">
  <cfform action="landing.cfml" method="post">

    <div class="checkboxes">
      <cfoutput query="animals">

        <input type="checkbox" name="myDataList" value="#animals#" <cfif listFind(selectedAnimals, animalid)></cfif>> #animalname# <br />
      </cfoutput>
    </div>

    <cfinput type="Submit" name="SubmitForm" value="Submit">
  </cfform>
</div>

I coloured the background of the checkboxes blue to see how it lies. It spreads across the whole screen. margin: auto; or margin: 0 auto; make no difference. It also doesn't matter if the margin: auto; is in the .myform or the .checkboxes, it still doesn't work. If I change it to margin-left: 30rem; margin-right:30rem; it moves, but I can't have an absolute positioning.

Everything I have read says to use margin: auto; and it should position the div in the centre horizontally.

htmlcsscheckboxresponsive-design


Solution 1:[1]

You can try using display: flex; on the parent with justify-content: center;

.myform {
  position: relative;
  right: 0; /* Fill in a positive value here, to push to left */
  padding: 2rem;
  margin-left: auto;
  margin-right: auto;
  display: flex;
  justify-content: center;
}

.checkboxes {
  background-color: aquamarine;
}
<div class="myform">
  <cfform action="landing.cfml" method="post">

    <div class="checkboxes">
      <cfoutput query="toolIds">

        <input type="checkbox" name="myDataList" value="#toolid#" <cfif listFind(selectedTools, toolid)></cfif>> #toolname# <br />
      </cfoutput>
    </div>

    <cfinput type="Submit" name="SubmitForm" value="Submit">
  </cfform>
</div>

Sources

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Source: Stack Overflow

Solution Source
Solution 1

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