github.com/outbrain/consul@v1.4.5/ui-v2/app/styles/components/secret-button/layout.scss (about)

     1  %secret-button {
     2    cursor: pointer;
     3  }
     4  %secret-button input {
     5    display: none;
     6  }
     7  %secret-button input + em {
     8    visibility: hidden;
     9    font-style: normal;
    10  }
    11  %secret-button input:checked + em {
    12    @extend %user-select-text;
    13    visibility: visible;
    14    cursor: auto;
    15  }
    16  %secret-button input + em::before {
    17    display: inline;
    18    visibility: visible;
    19    content: '■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■';
    20  }
    21  %secret-button input:checked + em::before {
    22    display: none;
    23  }