#principal {
    width: 1140px;
    margin: auto;
}


.columna {
    float: left;
    padding: 0 10px;
}

.fila::after {
    content: "";
    display: table;
    clear: both;
}


.menu{
    list-style-type: none;
    margin: 0;
    padding: 0;
   
}
.menu li {
    float: left;

}

a {
    color: rgb(255, 0, 4);
    text-decoration: none;
    font-weight: normal;
    padding: 12px 16px;
    display: inline-block;
    border-radius: 10%;
    font-weight: bold;
    margin-bottom: 20px;
}

a:hover {
    text-decoration: underline;
    color: rgb(1, 13, 0);
    background-color: rgb(248, 5, 5);
   
    text-align: center;
   
}




/*------- general------*/
* {
    box-sizing: border-box;
}




.cien {
    width: 100%;
}

.noventa {
    width: 90%;
}

.ochenta {
    width: 80%;
}

.setentaycinco {
    width: 75%;
}

.setenta {
    width: 70%;
}

.sesenta {
    width: 60%;
}

.cincuenta {
    width: 50%;
}

.cuarenta {
    width: 40%;
}

.treintaytres {
    width: 33.333333%;
}

.veinticinco {
    width: 25;
}

.veinte {
    width: 20%;
}

.diez {
    width: 10%;
}

/*-------media--------*/
img {
    max-width: 100%;
}

#iconodomestik img {
    width: 100px;
}

#iconodomestik p {
    text-align: center;
    margin: 0%;
}
.comprar {
    background-color: #00b2bd;
    color: #fff;
    padding: 12px 16px;
    width: 100%;
    display: inline-block;
    text-align: center;
    border-radius: 10px;
    font-weight: bold;
    margin-bottom: 20px;
    background-image: url(imagenesweb/iconocarro.png);
    background-repeat: no-repeat;
    background-size: 35px;
    background-position: 50px;
}

.comprar:hover {
    background-color: #0bbac4ad;
    color: #fff;
}
.fila .columna div{
    border-radius: 8px;
    box-shadow: 0 16px 16px 0  red;
}