/* HOJA DE ESTILOS */
*{
    margin: center;
    padding: center;
    box-sizing: border-box;
}

body{
    font-family: 'Raleway', sans-serif;
}
header{
    width: 21.2%;
    height: 45px;
    background: #333;
    color: white;
}
.contenedor{
    width: 98%;
    margin: auto;
}
header .contenedor{
    display: table;
}

/* MENU */
#menu-bar{
    display: none;
}
header label{
    float: right;
    font-size: 25px;
    margin: 6px 0;
    cursor: pointer;
}
.menu{
    margin: 8px;
    position: absolute;
    top: 43px;
    left: 0;
    width: 21%;
    height: 72vh;
    background: rgba(51,51,51,0.9);
    transition: all 0.5s;
    transform: translateX(-150%);
    z-index: 100;
}
.menu a{
    display: block;
    color: #fff;
    height: 50px;
    text-decoration: none;
    padding: 15px;
    border-bottom: 2px solid rgba(255,255,255,0.5);
}
.menu a:hover{
    background: rgba(255,255,255,0.5);
}
#menu-bar:checked ~ .menu{
    transform: translateX(0%);
}

/* BANNER */
#banner .contenedor{
    position: fixed;
    top: 25%;
    left: 50%;
    transform: translateX(-50%) translateY(-50%);
    color: #fff;
}
#banner h1{
    margin: 10px;
    margin-bottom: -1.5%;
    font-size: 85px;
    font-style: bold;
    color: firebrick;
}
#banner p{
    margin: 7px;
    margin-top: %;
    margin-left: 0.5%;
    font-size: 25px;
    font-style: thin;
    color: white;
    background-color: firebrick;
    margin-right: 80.4%;
    margin-top: 0.3%;
    margin-left: 0.5%;
}

/* MATERIAS1 */
#materias1 img{
    margin-top: -0.2%;
}
#materias1 h1{
    margin-top: -9%;
    margin-left: -81.5%;
    margin-right: 15%;
    text-align: center;
    font-size: 40px;
    color: firebrick;
}
#materias2 img{
    margin-top: -6.9%;
    margin-left: 5.43%;
}
#materias2 h1{
    margin-top: -9%;
    margin-left: -70.5%;
    margin-right: 15%;
    text-align: center;
    font-size: 40px;
    color: white;
}
#materias3 img{
    margin-top: -8.65%;
    margin-left: 10.84%;
}
#materias3 h1{
    margin-top: -9%;
    margin-left: -59.6%;
    margin-right: 15%;
    text-align: center;
    font-size: 40px;
    color: black;
}
#materias4 img{
    margin-top: -10.4%;
    margin-left: 15.79%;
}
#materias4 h1{
    margin-top: -9%;
    margin-left: -49%;
    margin-right: 15%;
    text-align: center;
    font-size: 40px;
    color: firebrick;
}
/* MATERIAS2 */
#materias5 img{
    margin-top: -0.9%;
    margin-left: %;
}
#materias5 h1{
    margin-top: -9%;
    margin-left: -82%;
    margin-right: 15%;
    text-align: center;
    font-size: 40px;
    color: black;
}
#materias6 img{
    margin-top: -6.9%;
    margin-left: 5.4%;
}
#materias6 h1{
    margin-top: -9%;
    margin-left: -71%;
    margin-right: 15%;
    text-align: center;
    font-size: 40px;
    color: white;
}
#materias7 img{
    margin-top: -8.65%;
    margin-left: 10.8%;
}
#materias7 h1{
    margin-top: -9%;
    margin-left: -59.7%;
    margin-right: 15%;
    text-align: center;
    font-size: 40px;
    color: black;
}
#materias8 img{
    margin-top: -10.35%;
    margin-left: 15.8%;
}
#materias8 h1{
    margin-top: -9%;
    margin-left: -49%;
    margin-right: 15%;
    text-align: center;
    font-size: 40px;
    color: white;
}