<style>

 .pos_left{

 color: #f00;
 width: 40%;
 }

 .pos_right{

 color: #f00;
 width: 40%;
 }
span{
 width: 10%;
 }


.line{
position: absolute;
top: 10%;
width: 40%;
display: flex;
flex-wrap: wrap;
}

 </style>

 <div class='line'>
 <hr class='pos_left'><span>Day 1</span><hr
 class='pos_right'>
 </div>