How do i Create a CF7 form similar to original form ?

Insert this code in CF7 form. 

<div class="group"> <h2 class="black mb">Send Us a Message</h2> <div class="one_half"> [text your-name watermark "Name"] [email your-email watermark "Email"] [text your-subject watermark "Subject"] </div> <div class="one_half last"> <p>[textarea your-message watermark "Message"]</p> </div> </div> <p align="left"> [submit class:clapat-button "Submit"]</p>

add this to your CSS Overide Box

.wpcf7-submit { width:120px; float:left; cursor:pointer; margin:0; font-size:12px; font-weight:normal; }