style.css

*{
    background: #F3F5FC;
    font-family: 'Inter';
    font-style: normal;
    font-weight: 400;
    font-size: 32px;
    line-height: 48px;
}
.logo{
    padding-top: 40px;
    padding-left: 40px;
    width: 120px;
    height: 48px;
}
main{
    display: flex;
    margin-top: 40px;
    margin-bottom: 20px;
}
.seccion-1{
    /*width: 65%;*/
}
.seccion-2{
    /*width: 35%;*/
    /*padding-left: 50px;*/
    margin-left: 50px;
    background: white;
    border-radius: 20px;

    
    display: flex;
    flex-direction: column;
    
    
    
}
.text-area{
    width: 577px;
    margin-left: 200px;
    border: none;
    color: #0A3871;
    text-transform: lowercase;
    
}
::placeholder{
    color: #0A3871;
}
.text-area:focus{
    outline: none;
}
.informacion{
    color: #495057;
    font-size: 18px;
    margin-left: 200px;
    /*margin-top: 851px;*/
}
.botones{
    
    display: flex;
    /*margin-top: 18px;*/
    margin-bottom: 20px;
    margin-left: 200px;
}
.btn-encriptar{
    background-color: #0A3871;
    border: 1px solid #0A3871;
    border-radius: 24px;
    color: white;
    cursor: pointer;
    height: 60px;
    width: 260px;
}
.btn-desencriptar{
    /*background: #D8DFE8;*/
    border: 1px solid #0A3871;
    border-radius: 24px;
    color: #0A3871;
    cursor: pointer;
    
    margin-left: 61px;
    height: 60px;
    width: 260px;
}

.mensaje{
    width: 400px;
    background: white;
    background-image: url("imagenes/Muñeco.png");
    background-repeat: no-repeat;
    background-position: center;
    padding: 20px;
    border: none;
    border-radius: 20px;
    color: #495057;
    /*padding-left: 20px;   */
}

.mensaje:focus{
    outline: none;
}
.informacion-mensaje{
    background-color: white;
}
.informacion-mensaje .infor-1{
    width: 336px;
    text-align: center;
    background-color: white;
    font-size: 24px;
    line-height: 28.8px;
    font-weight: bold;
    margin: 0 auto;
}
.informacion-mensaje .infor-2{
    width: 336px;
    text-align: center;
    background-color: white;
    font-size: 16px;
    line-height: 24px;
    margin: 0 auto;
}
.div-copiar{
    
    background-color: white;
    display: flex;
    justify-content: center;
    align-items: center;
    margin-top: auto;
    margin-bottom: 20px;
    
    /*margin-top: 104px;*/
    /*margin-bottom: 20px;*/
    /*border-bottom-left-radius: 20px;
    border-bottom-right-radius: 20px;*/
}

.btn-copiar{
    /*display: flex;*/
    height: 60px;
    width: 260px;
    border: 1px solid #0A3871;
    border-radius: 24px;
    color: #0A3871;
    cursor: pointer;
    display: none;
    
    /*margin-left: 108px;
    margin-top: 66px;
    position: relative;

    */
}

@media screen and (max-width:375px){
    main, .botones{
        display: block;
    }
    .seccion-1,.seccion-2,.btn-encriptar,.btn-desencriptar{
        width: 100%;
        
    }
    .btn-encriptar,.btn-desencriptar{
        font-size: 16px;
    }
    .botones, .text-area, .informacion,.seccion-2{
        margin-left: 0;
        padding: 0;
    }
    .text-area{
        width: 100%;
        height: 300px;
        padding: 10px;
        box-sizing: border-box;
    }
    .informacion{
        padding-left: 10px;
    }
    .botones{
        width: 96%;
        padding: 0 2%;
    }
    .btn-desencriptar{
        margin: 0;
        margin-top: 10px;
    }
    .mensaje{
        width: 100%;
        padding: 10px;
        box-sizing: border-box;
        background-image:none;
        height: 70px;
    }
    .logo{
        padding-left: 0px;
        padding-top: 20px;
    }
}

@media screen and (min-width: 376px) and (max-width:768px){
    main{
        display: block;
        
    }
    .seccion-1,.seccion-2{
        width: 100%;
        
    }
    .btn-encriptar,.btn-desencriptar{
        font-size: 16px;
    }
    .botones, .text-area, .informacion,.seccion-2{
        margin-left: 0;
        padding: 0;
    }
    .text-area{
        width: 100%;
        height: 300px;
        padding: 10px;
        box-sizing: border-box;
    }
    .informacion{
        padding-left: 10px;
    }
    .botones{
        width: 100%;
        padding: 0 4%;
        box-sizing: border-box;
    }
    .btn-encriptar{
        width: 47%;
    }
    .btn-desencriptar{
        width: 47%;
        margin: 0;
        margin-left: 6%;
        
    }
    .mensaje{
        width: 100%;
        padding: 10px;
        box-sizing: border-box;
        background-image:none;
        height: 70px;
    }
    .logo{
        padding-left: 0px;
        padding-top: 20px;
    }
}