body{
    font-size: 12px;
    /* background-image: url('../img/pruebas.png'); */
}
.centrado{
    text-align: center;
    position: absolute;
    border-radius: 15px;
    padding: 15px;
    width: 500px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background-color: white;
}

img{
    margin: 5px 50px 5px 15px;
}
.container > .row > a > button {
    padding: 6px 3px;
    margin: 15px 3px;
    border-radius: 10px;
}
.container > .row > button > a {
    color: white;
    text-decoration: none;
    font-style: italic;   
}

input {
    border-radius: 10px;
    padding: 10px;
}
.titulo{
    padding: 10px;
}
input:invalid, textarea:invalid, ::placeholder {
    background:red;
    color: whitesmoke;
}
.imagenes{
    display: inline-block;
    margin: 10px 0;
}
.imagenes img{
    border-radius: 7px;
    margin:auto;
    width: 100%;
}
.imagenes p{
    margin: 0;
}
#modalTitulo{
    background-color: chartreuse;
    border-radius: 5px;
}
.showPteMaterial.showPteMaterial{
    margin-left: -10px;
    padding-left: -50px;
}
.btn-seguimiento{
    margin-left: 10px;
}