*{
   margin: 0;
   padding: 0;
   box-sizing: border-box;
}
body{
   min-height: 100vh;
   align-items: center;
   justify-content: center;
   background-color: rgb(42, 89, 97);
}
.container{
   margin: 30px;
   width: auto;
}
h1{
   text-align: center;
   font-size: 3rem;
   font-family: 'Lucida Sans', 'Lucida Sans Regular', 'Lucida Grande', 'Lucida Sans Unicode', Geneva, Verdana, sans-serif;
   padding-bottom: 20px;
   color: #bbadadd8;
}
.text-input{
   width: 100%;
   height: 10vh;
   font-size: 3rem;
   border-radius: 10px 10px 0px 0px;
   border: none;
   outline: none;
   padding: 40px 10px;
}
.text-output{
   width: 100%;
   height: 10vh;
   font-size: 3rem;
   border-radius: 0px 0px 5px 5px;
   border: none;
   outline: none;
   text-align: end;
   padding: 40px 10px;
}
.div-btn{
   display: flex;
   flex-wrap: wrap;
   margin-top: 2px;
   
}
button{
   width: 25%;
   padding: 5px;
   transition: all 0.5s;
   border: 1px solid rgb(0, 0, 0, 0.5);
   border-radius: 5px;
   outline: none;
   font-size: 2rem;
}
.btn:hover{
   opacity: 0.25;
}
.btn-yellow{
   background-color: rgba(255, 255, 0, 0.8);
}
.btn-green{
   background-color: rgba(0, 128, 0, 0.8);
}
.btn-red{
   background-color: rgba(255, 0, 0, 0.5);
}
.btn-blue{
   background-color: rgba(82, 82, 255, 0.7);
}
footer{
   text-align: center;
   font-size: 1rem;
   position: relative;
   top: 4vh;
   margin: auto;
}