style.css

li{
    display: inline-block;
    margin: 0 0 0 10px;
}
.texto1{
    position: absolute;
    width: 740px;
    height: 200px;
    left: 110px;
    top: 68px;
    border: none;
    font-size: 25px;
}

.texto2{
    position: absolute;
    width: 400px;
    height: 380px;
    left: 900px;
    top: 40px;
    border-radius: 0 32px 32px 32px;
    background: #fff;
    margin: 0px;
    
    font-size: 20px;
}

.cixa-dos-botoes {
    /*border: 2px solid #000000;*/
    position: absolute;
    left: 0px;
    top: 340px;    
}

input textarea{
    text-align: center;
    font-family: 'Inter';
    font-style: normal;    
    line-height: 19px;
}


input{
    border-radius: 24px;
    position: static;
    width: 328px;
    height: 67px;
    left: 0px;
    top: 150px;   
    
    font-size: 16px; 
    font-weight: bold;
}

.enviar-criptografia{
    background: #0A3871;       
    margin: 0px 50px;  
    color: #fff;
  }
  
  .desfazer-criptografia{  
      background: #D8DFE8;    
      margin: 0px 35px;
      color: #090909;
  }

.copiar{
    background: #D8DFE8;
    position: absolute;
    width: 336px;
    height: 67px;
    left: 932px;
    top: 340px;
    margin: 0px 10px;
    color: #090909;
}
main .copiar{
    text-align: center;
}

footer{
    border: 2px solid #000000;
    margin: 400px;
    text-align: center;
    float: center;   
}