style.css

body{
    margin: 0px;
    padding: 0px;
    font-size: 2rem; 
}
/*@media (max-width: 430px) {
    body{
        background-color: rgb(235, 209, 149);
    }
    }*/

nav{
    margin: 0px;
    width: 100%;
    background: rgb(11, 34, 57);
    height: 130px ;
}
nav h1{
    color: #ffff;
    margin: 0px;
    text-align: center;
}
.section1{
    width: 100%;
    background-color: #ffff;
}

.container {
    width: 80%;
    margin: 10px auto;
}

.container img{
 width: 100%;
}
.coloumns{
    display: flex;
    justify-content: space-between;
}

.coloumns h1{
font-size: 1.5rem;    
}
.coloumns p{
    font-size: .55em;
    line-height: 1.4rem;
}
.clm1{
width: 35%;
}
.clm2{
    width: 30%;
}
.clm3{
    width: 30%;
}
@media (max-width: 415px) {
    .coloumns{
        flex-direction: column;
    }
    .clm1,
    .clm2,
    .clm3{
        width: 100%;
    }
}
@media ( max-width: 381px) {
    nav h1{
        font-size: 2.5rem;
    }  
}