main.css

body {
    margin: 0;
    padding: 0;
    box-sizing: border-box; 
}
.container {
    display: flex;
    flex-direction: row;
    justify-content: center;
    align-items: center;
    background-color: #17102e;
    height: 100vh;
    width: 100%;
    text-align: center;
}
.item1 {
    background-color: #271b3d;
    opacity: 70%;
    width: 18%;
    height: 45%;
    margin-right: 3rem;
    border: 2px solid  #271b3d;
    border-radius: 3px;
}
.item2 {
    background-color:  #271b3d;
    opacity: 70%;
    width: 18%;
    height: 45%;
    margin-right: 3rem;
    border: 2px solid  #271b3d;
    border-radius: 3px;
}
.item3 {
    background-color: #271b3d;
    opacity: 70%;
    width: 18%;
    height: 45%;
    margin-right: 3rem;
    border: 2px solid #271b3d;
    border-radius: 3px;
}
img {
    width: 50%;
    height: 40%;
    border-radius: 50% 50% 50% 50%;
    object-fit: cover;
    object-position: center;
    display: flex;
    margin: 10px 40px 0px;
    padding: 10px 15px 10px;
}
button {
    color: white;
    font-size: 15px;
    font-family: 'Gill Sans', 'Gill Sans MT', Calibri, 'Trebuchet MS', sans-serif;
    margin: 0 0 0px;
    border: .09rem solid black;
    border-radius: 4rem;
    padding: 5px 40px 5px;
    background-color:  #271b3d;
    outline: 0;
    cursor: pointer;
    
}
button:hover {
    color: rgb(100, 93, 93);
    transition: color .8s;
    background-color:#17102e;
    transition: background-color .8s;
    font-weight: bolder;
}
p {
    color: white;
    font-size: 15px;
    font-family: 'Gill Sans', 'Gill Sans MT', Calibri, 'Trebuchet MS', sans-serif;
    margin: 0 0 4.5rem;
}
/* responsiveness of phone screens to page contents*/
@media only screen and (min-width: 320px) and (max-width: 460px) {
    body {
        margin: 0;
        padding: 0;
        box-sizing: border-box;
    }
    .container {
        display: flex;
        flex-direction: column;
        text-align: center;
        align-items: center;
        justify-content: center;
        padding: 1.5rem;
        margin-right: 2rem;
        height: 100vh;
       /* overflow: none;*/
    }
 .item2, .item3 {   
        width: 45%;
        height: 45%;
        margin-bottom: 2rem;
    }
    .item1 {
        width: 45%;
        height: 50%;
        margin-bottom: 2rem;
        margin-top: 0;
    }
    img {
        width: 50%;
        height: 40%;
        border-radius: 50% 50% 50% 50%;
        object-fit: cover;
        object-position: center;
        display: flex;
        padding: 1rem;
        margin: 2rem 2rem 0;
    }
    button {
        
        padding: 5px 40px 5px;
        
    }
    p {
        margin: 0 0 1.5rem;
    }
}

@media only screen and (min-width: 461px) and (max-width: 580px) {
   
    .container {
        display: flex;
        flex-direction: column;
        text-align: center;
        align-items: center;
        justify-content: center;
        padding: 1rem;
        margin: 0;
        height: 100vh;
       /* overflow: none;*/
    }
 .item2, .item3 {   
        width: 45%;
        height: 45%;
        margin-bottom: 2rem;
    }
    .item1 {
        width: 45%;
        height: 50%;
        margin-bottom: 2rem;
        margin-top: 0;
    }
    img {
        width: 50%;
        height: 40%;
        border-radius: 50% 50% 50% 50%;
        object-fit: cover;
        object-position: center;
        display: flex;
        align-items: center;
        padding: 1rem;
    }
    button { 
        padding: 5px 40px 5px; 
    }
    p {
        margin: 0 0 2.5rem;
    }
}

@media only screen and (min-width: 581px) and (max-width: 774px) {
    .container {
        display: flex;
        flex-direction: row;
        text-align: center;
        padding: .5rem;
        margin-right: .5rem;
        height: 100vh;
        width: 100%;
    }
    .item1, .item2, .item3 {
        width: 25%;
        height: 35%;
        margin-right: 1rem;   
    }
    img {
        width: 60%;
        height: 35%;
        border-radius: 50% 50% 50% 50%;
        align-items: center;
        padding: .5rem 0 1rem;
    }
}
@media only screen and (min-width: 775px) and (max-width: 980px){
    .container {
        display: flex;
        flex-direction: row;
        text-align: center;
        padding: .5rem;
        margin-right: .5rem;
        height: 100vh;
        width: 100%;
    }
    .item1, .item2, .item3 {
        width: 25%;
        height: 35%;
        margin-right: 1rem;   
    }
    img {
        width: 60%;
        height: 35%;
        border-radius: 50% 50% 50% 50%;
        align-items: center;
        padding: .5rem 0 1rem;
    }
}
@media only screen and (min-width: 981px) and (max-width: 1600px) {
    container {
        display: flex;
        flex-direction: row;
        justify-content: center;
        align-items: center;
       
    }
    .item1, .item2, .item3 {
        width: 18%;
        height: 40%;
    }
  
    img {
        width: 50%;
        height: 35%;
        border-radius: 50% 50% 50% 50%;
        object-fit: cover;
        object-position: center;
        display: flex;
        margin: 10px 40px 20px;
        padding: 10px 15px 10px;
}
}