card.html

<style>
.bold{
  font-weight:bold
}

.opcardtext {
    display: inline-block;
    font-size: 31px;
    font-family: Lato;
    width: 33.3%;
    margin-left: 13px;
    text-align: center;
}

.opcardtext span{
  display:block
  width:100%
}
</style>

<div class="opcardtext">
  <span>Deposit £15</span>
  <span class="bold">  Play with £45</span>
  <span class="bold">+50 Bonus Spins</span>
</div>