Post blog Item injection code Injection not working

I've been building a sidebar using a secondary blog and summary blocks , which was working fine on Friday morning. Came back to do more design editing to find the code not working at all. Can someone help me understand why this happened and what to do about it?

Code in use is:

<style>
  .sqs-block-summary-v2 .summary-item {border-radius: 15px 15px 15px 70px;}
  .sqs-block-summary-v2 {border-left:2px solid #D3D3D3!important}
  .summary-title {border: 2px solid #D3D3D3 !important; color:#D3D3D3!important}
  .summary-title:hover {background:#D3D3D3 !important; color:#D3D3D3!important}
</style>

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