Custom Checkbox Issue in only Edge - html

Question

I am facing a strange problem with a checkbox that I have customized for my personal blog. I was checking for browser compatibility when I found this scenario.
The custom checkbox is working in Chrome, Firefox and IE 10. But when I checked for Edge, it is not working and the styles are not getting applied.
label {
display: inline-block;
max-width: 100%;
}
input[type='checkbox'] {
display: none;
box-sizing: border-box;
padding: 0;
outline: none;
border: none;
background: transparent;
width: auto;
}
input[type='checkbox']:checked+.tick_mark {
color: #16a0de;
}
input[type='checkbox']+span {
cursor: pointer;
font-weight: normal;
font-size: 11px;
}
.tick_mark {
border: 1px solid #666;
padding: 0px 1px;
color: white;
margin: 6px 4px 6px 0;
font-weight: normal;
}
<label>
<input name="postSelected" class="NonUnSaved" id="chkBlog" type="checkbox" value="4">
<span class="tick_mark">✔</span>
<span class="btntooltip" data-val="checkboxTest">Text 1</span>
</label>

Answer 1

Why this is happening
Edge is defaulting to the Segoe UI Emoji font for the emoji instead of Segoe UI Symbol.
How to fix it
To get a consistent result add font-family: Segoe UI Symbol; to .tick_mark.
label {
display: inline-block;
max-width: 100%;
}
input[type='checkbox'] {
display: none;
box-sizing: border-box;
padding: 0;
outline: none;
border: none;
background: transparent;
width: auto;
}
input[type='checkbox']:checked+.tick_mark {
color: #16a0de;
}
input[type='checkbox']+span {
cursor: pointer;
font-weight: normal;
font-size: 11px;
}
.tick_mark {
border: 1px solid #666;
color: white;
margin: 6px 4px 6px 0;
font-weight: normal;
font-family: Segoe UI Symbol;
line-height: 1em;
min-width: 1em;
min-height: 1em;
display: inline-block;
text-align: center;
}
<label>
<input name="postSelected" class="NonUnSaved" id="chkBlog" type="checkbox" value="4">
<span class="tick_mark">✔</span>
<span class="btntooltip" data-val="checkboxTest">Text 1</span>
</label>