*, *:before, *:after {
    box-sizing: border-box;
}
body{
    margin: 0;
    font-family: Roboto, sans-serif;
    font-size: 20px;
    padding: 20px 15px;
    background-color:rgb(67, 73, 78);
}

a {
    text-decoration: none;
    color: #777;
    transition: all 0.3s ease;
}

img {
    max-width: 100%;
    height:auto;
}


.container {
    max-width: 1000px;
    margin: 0 auto;
    border-radius: 5px;
    box-shadow: 0 0 35px rgba(0, 0, 0, 0.01);
}

header {
    display:flex;
    align-items: center;
    padding: 15px;
    justify-content: space-between;
    
}


.brand a,
.brand img {
    display: block;
    height:90px;
    width: 90px;
}

nav ul {
    list-style: none;
    margin: 0;
    padding: 0;
}
nav li {
    display: inline-block;
    margin: 0 3px;
}
nav a {
    color: #000;
    padding: 10px 15px;
    font-size: 18px;
    display: block;
}
nav a:hover {
    background-color: black;
    color: white;
}
 

.slider {
    overflow: hidden;
}

.slider img {
    display: block; 
    transition: transform 0.3s;
}

.slider img:hover {
   transform: rotate(3deg) scale(1.20);
}



main {
    display: flex;
    justify-content: space-between;
}


article {
    width: 70%;
    padding: 30px;
}

 
aside {
    width: 30%;
    padding: 20px;
    background-color: #8f8a8a;
    border-left: 2px solid rgb(78, 75, 75);
    }

.widget {
    margin-bottom: 30px;
}
.widget:after {
        content: '';
        display: table;
        clear: both;
    }

.widget li {
    margin-bottom: 15px;
}

.widget img {
    float: left;
    margin: 0 12px 5px 0;
}

.widget ul {
    list-style-type: square;
    padding: 0 0 0 18px;
    margin: 0;
}


footer {
    background-color:#8f8a8a;
    border-top: 2px solid rgb(78, 75, 75);
    padding: 22px 15px;
    text-align: center;
}
footer p {
    margin:0;
}

@media (max-width: 800px) {
 
    
header {
     flex-direction: column;
    }

.brand {
     margin-bottom: 25px;
    }
    
    nav ul {
        text-align: center;
    }

main {
    flex-direction: column;
    }
   
    article, aside{
        width: 100%;
        padding: 25px;
    }

    article h1, article h2 {
        text-align: center;
    }  
    
    article img {
        display: block;
        width: 100%;
        margin: 30px auto;
    }
     
    aside {
        border: 0;
    }
}

@media (max-width: 480px) {
   
    heade {
     padding-bottom: 30px;
     border-bottom: 1px solid rgb(0, 0, 0);
    }
    
     nav {
        width: 100%;
     }
    nav li {
        display: block;
        margin: 0 0 5px;
    }
    
    .slider {
        display: none;
    }

    article h1  {
        margin-top: 0;
    }

}
h2 {
  font-size:20px;
}