JSFiddle - React, Tailwind, and code Playground
HTML
<input type="text" value="Enter Your First Name" id="form"
onblur="javascript:if(this.value=='')this.value='Enter Your First Name';"
onclick="javascript:if(this.value=='Enter Your First Name')this.value='';"
onFocus="this.value=''">
</input></br>
<input type="text" value="Enter Your Email" id="form"
onblur="javascript:if(this.value=='')this.value='Enter Your Email';"
onclick="javascript:if(this.value=='Enter Your Email')this.value='';"
onFocus="this.value=''">
</input></br>
<input type="text" value="Enter Your Phone Number" id="form"
onblur="javascript:if(this.value=='')this.value='Enter Your Phone Number';"
onclick="javascript:if(this.value=='Enter Your Phone Number')this.value='';"
onFocus="this.value=''">
</input></br>
<input type="submit" class="button" name="submit" value=""></input>