body {
    margin: 0;
    font-family: sans-serif;
}

.sidebar {
    width: 250px;
    background-color: #f1f1f1;
    padding: 20px;
    height: 100vh;
    position: fixed;
    top: 0;
    left: 0;
}

.sidebar img{
    width: 30%;
    margin: auto;
}

.sidebar ul {
    list-style: none;
    padding: 0;
}

.sidebar li {
    padding: 10px 0;
}

.sidebar a {
    text-decoration: none;
    color: #333;
    display: block;
    padding: 10px;
    transition: background-color 0.3s ease;
}

.sidebar a:hover {
    background-color: #ddd;
}

.welcome {
    margin-left: 280px;
    padding: 20px;
    background-image: url(images/headerpattern.png);
}

.welcome h1{
    margin-left: 150px;
}


.about{
    margin-left: 150px;
    background-color: rgba(243, 243, 243, 0.5);
}
.abt{
    margin-left: 150px;

}
.abt h2{
    text-align: center;
}

.abt h3{
    text-align: center;
}
.about p{
    text-align: center;
    margin-left: 280px;
    width: 50%;
}

.phases{
    margin-left: 280px;
    padding: 20px;
    background-image: url(images/headerpattern.png);
    
}

.phases h1{
    margin-left: 150px;
}

.solids{
    margin-left: 280px;
    padding: 20px;
    background-image: url(images/headerpattern.png);
}

.solids h1{
    margin-left: 150px;
}


.liquids{
    margin-left: 280px;
    padding: 20px;
    background-image: url(images/headerpattern.png);
}

.liquids h1{
    margin-left: 130px;

}

.matter{
    margin-left: 280px;
    padding: 20px;
    background-image: url(images/headerpattern.png);
}

.matter h1{
    margin-left: 150px;
}

.thefourtypes{
    margin-left: 150px;
    align-items: center;
    text-align: center;
}
.thefourtypes section{
    display: flex;
    flex-direction: row;
    padding: 2px;
    margin-left: 150px;

}
.thefourtypes p{
    margin-left: 150px;
    position: relative;
    text-align: center;
}

.thefourtypes img{
    width: 250px;
    display: flex;
    flex-direction: column;
    border-radius: 200px;

}


.diagram{
    width: fit-content;
    margin-left: 280px;
    display: flex;
    flex-direction: row;

    align-items: center;
}
.diagram img{
    width: 60%;
    margin-left: 150px;
}
.diagram div{
    display: flex;
    flex-direction: column;
}
.diagram ul{
    text-wrap: wrap;
    width: 50%;
}


.whataresolids{
    margin-left: 280px;
    width: fit-content;
    display: flex;
    flex-direction: row;
    align-items: center;
    background-color: #b4b4b470;
}
.whataresolids div{
    margin: 15px;
    width: 20%;
    margin-left: 150px;
}
.whataresolids img{
    width: 30%;
    margin: 20px;
    border-radius: 150%;
}
.pointsofsolids{
    margin-left: 280px;
    width: fit-content;
    padding: 20px;
}
.pointsofsolids h2{
    margin: 20px;
    margin-left: 150px;
}
.pointsofsolids li{
    padding: 10px;
    margin-left: 150px;
    width: 60%;
}

.phasesofsolids{
    margin-left: 280px;
    width: fit-content;
    display: flex;
    flex-direction: row;
    align-items: center;
    background-color: rgb(173, 173, 173);
}
.phasesofsolids img{
    width:20%;
    margin: 20px;
    border-radius: 150%;
}
.phasesofsolids div{
    margin: 20px;
    width: 40%;
    margin-left: 150px;
}
.whatareliquids{
    display: flex;
    flex-direction: row;
    margin-left: 150px;
    align-items: center;
    justify-content: space-between;
    padding: 20px;
}
.whatareliquids div{
    margin: 15px;
    width: 20%;
    margin-left: 300px;
}

.whatareliquids img{
    width: 30%;
    margin-right: 280px;
    border-radius: 150%;
}

.pointsofliquids{
    margin-left: 280px;
    width: fit-content;
    padding: 20px;
    background-color: rgb(173, 173, 173);

}

.pointsofliquids h2{
    margin: 20px;
    margin-left: 150px;
}
.pointsofliquids li{
    padding: 10px;
    margin-left: 150px;
    width: 60%;
}

.phasesofliquids{
    margin-left: 280px;
    display: flex;
    flex-direction: row;
    align-items: center;
}
.phasesofliquids div{
    padding: 20px;
    width: 40%;
}
.phasesofliquids img{
    width: 40%;
    margin: 30px;
    margin-left: 150px;
    border-radius: 150%;
}

.plasma{
    margin-left: 280px;
    padding: 20px;
    background-image: url(images/headerpattern.png);
}

.plasma h1{
    margin-left: 150px;
    width: fit-content;
}

.whatisplasma{
    margin-left: 280px;
    width: 60%;
    display: flex;
    flex-direction: row;
    padding: 20px;
}
.whatisplasma h2{
    margin-left: 150px;
}
.whatisplasma p{
    margin-left: 150px;
    width: 60%;
}
.whatisplasma img{
    border-radius: 150%;

}
.pointsofplasma{
    margin-left: 280px;
    background-color: rgb(173, 173, 173);
    padding: 20px;
}
.pointsofplasma h2{
    margin-left: 150px;
}
.pointsofplasma ul{
    margin-left: 150px;
    width: 60%;
}
.pointsofplasma li{
    padding: 5px;
}

.phasesofplasma{
    margin-left: 280px;
    padding: 20px;
}
.phasesofplasma h2{
    margin-left: 150px;
}
.phasesofplasma p{
    margin-left: 150px;
}
.phasesofplasma ul{
    margin-left: 150px;
}
.phasesofplasma li{
    padding: 5px;
}

.examplesofplasma{
    margin-left: 280px;
    display: flex;
    flex-direction: row;
    align-items: center;
    background-color: rgb(173, 173, 173);
    padding: 20px;
}
.examplesofplasma div{
    margin-left: 150px;
    
}
.examplesofplasma img{
    width: 30%;
    padding: 5px;
    border-radius: 150%;
}

.whatismatter{
    margin-left: 280px;
    display: flex;
    flex-direction: row;
    background-color: rgb(173, 173, 173);
    padding: 20px;
    border-radius: 2px;
}
.div1{
    width: 40%;
    margin-left: 150px;
}
.div2{
    width: 40%;
}

.phasesofmatter{
    margin-left: 280px;
}
.phasesofmatter h2{
    margin-left: 150px;
}
.phasesofmatter p{
    margin-left: 150px;
}
.phasesofmatter a{
    margin-left: 150px;
    color: black;
}