@media only screen and (max-device-width: 739px){
    #nav_link_home{
        color: yellow;
    }
    
    #content {
        text-align: center;
    }
    
    .section {
        border-top: 3px solid #333;
    }
    
    #section_one{
        width: auto;
        margin: 15px auto 0px auto;
        display: block;
        position: relative;
    }
    
    .home_button {
        background: linear-gradient(to bottom,#348bcf 0,#125ca6 100%);
        height: auto;
        width: 600px; 
        color: white;
        border: 1px solid #125ca6;
        border-radius: 5px;
        padding: 2px;
        text-align: center;
        display: block;
        position: relative;
        font-size: 50px;
        line-height: 75px;
        margin: 25px auto 25px auto;
    }
    
    
}

@media only screen and (min-device-width: 740px){
    #nav_link_home{
        color: yellow;
    }
    
    .section {        
        width: 740px;
        border-top: 3px solid #333;
        margin: 0px auto 0px auto;
        display: block;               
        position: relative;
    }
    
    #section_one{
        height: 230px;
        background: #ffffff url(../images/background.jpg);
        background-size: cover;        
        position: relative;
        
    }
    
    #section_one_title {
        text-align: center;        
    }
    
    .home_button {
        background: linear-gradient(to bottom,#348bcf 0,#125ca6 100%);
        height: 25px;
        width: 120px; 
        color: white;
        border: 1px solid #125ca6;
        border-radius: 5px;
        padding: 2px;
        text-align: center;
        display: block;
        position: relative;
        font-size: .8em;
        line-height: 25px;
    }
    
    #home_estimate_button {
        float: left;
        margin-left: 225px;
    }
    
    #home_work_button {
        float: right;
        margin-right: 225px;
    }
    
    
    #section_two{
        width: 740px;
        margin: 15px auto 0px auto;
        display: block;
        position: relative;
    }
    
    .section_two_h2 {
        text-align: center;
        font-size: 1.3em;
    }
    
    .section_two_div_p {
        border: 2px solid #434343;
        display: block;
        position: relative;
        width: 150px;
        height: 150px;
        line-height: 30px;
        text-align: center;
        margin: 25px;
        border-radius: 25px;
        box-shadow: 2px 5px #939393;
    }
    
    #section_two_div_p1 {
        float: left;
        margin-left: 100px;
    }
    
    #section_two_div_p2 {
        float: right;
        margin-right: 100px;
    }
    
    #section_two_footer {
        clear:both;
    }
    
    .section_three_h2 {
        text-align: center;
        font-size: 1.3em;
    }
    
    #section_three_div_links{
        width: 630px;
        margin: 10px auto 10px auto;
    }
    
    .section_three_link {
        margin: 5px 20px 5px 20px;
    }
    
        
}