Editor

<style> .sem-borda {

   border: none !important;
   outline: none !important;
   box-shadow: none !important;
   margin: 0 !important;
   padding: 0 !important;

}

/* Remove o contorno do LINK (a tag <a> que envolve a imagem) */ .sem-borda a {

   outline: none !important;
   border: none !important;
   text-decoration: none !important;
   box-shadow: none !important;

}

/* Remove qualquer contorno quando clica */ .sem-borda a:focus, .sem-borda a:active, .sem-borda a:hover {

   outline: none !important;
   border: none !important;
   box-shadow: none !important;

}

/* Remove o contorno da própria imagem */ .sem-borda img {

   outline: none !important;
   border: none !important;
   box-shadow: none !important;
   margin: 0 !important;
   padding: 0 !important;

} </style>